Journal articles on the topic 'Cartilage – Wounds and injuries – Treatment'
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Cvetanovich, Gregory, Alan Zhang, Brian Feeley, Brian Wolf, Carolyn Hettrich, C. Benjamin Ma, and Drew Lansdown. "Risk Factors for Intra-Articular Bone and Cartilage Lesions in Patients Undergoing Surgical Treatment for Posterior Instability." Orthopaedic Journal of Sports Medicine 8, no. 7_suppl6 (July 1, 2020): 2325967120S0037. http://dx.doi.org/10.1177/2325967120s00376.
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Objectives: Patients with posterior shoulder instability often present with significant differences in history of injury and complaints compared to anterior instability that can lead to challenges in diagnosis and treatment. These patients may have bone and cartilage lesions in addition to caspulolabral injuries, though the risk factors for these intra-articular lesions are unclear. The purpose of this study was to describe intraoperative incidence of glenohumeral bone and cartilage lesions in a cohort of patients undergoing primary posterior stabilization using data from a prospectively collected, multicenter shoulder instability cohort. We hypothesized that patients with traumatic posterior instability with greater number of instability events would have higher rate of bone and cartilage injuries compared to those without fewer instability episodes. Methods: Data from the Multicenter Orthopaedic Outcomes Network (MOON) Shoulder Group instability patient cohort was utilized for this study. This is a multi-center study encompassing a prospective evaluation of patients ages 12 to 99 years of age undergoing primary surgical treatment for shoulder instability by 24 orthopedic surgeons at 11 sites in the United States. Demographic data and specifics regarding the patient’s instability history were recorded, including patient age, sex, body mass index (BMI), history of smoking, and Beighton score. The number of instability events was classified as 0, 1, 2 to 5, or more than 5. The duration of symptoms was classified as <1 month, 1-3 months, 4-6 months, 7-12 months, or greater than 1 year. The glenohumeral joint was evaluated by the treating surgeon at the time of surgical treatment for bone and cartilage injuries, and patients were classified as having a bone or cartilage lesion (BCL) if there was any grade 3 or 4 glenoid or humeral cartilage lesion, reverse Hill-Sachs lesion, bony Bankart lesion, or glenoid bone loss. The effects of number of instability events on the presence of BCLs was investigated using Fisher’s exact tests. Multivariate analysis using logistic regression modeling was performed to investigate the independent contributions of demographic variables and injury-specific variables to the likelihood of having a BCL. Significance was defined as p<0.05. Results: There were 271 patients identified for analysis. Bone and cartilage lesions were identified in 59 patients (21.8%) at the time of surgical treatment (Table 1). The most common lesion was a glenoid cartilage injury, which was identified in 28 patients (10.3%). Patients with BCLs were significantly older and had significantly higher BMI relative to patients without BCLs (Table 2). There was a significant difference between the number of instability events and the presence of BCLs (p = 0.035), with the highest rate observed in patients with 2-5 instability events (33.9%) (Figure 1). Through multivariate logistic regression modeling, increasing age (p=0.002), increasing BMI (p=0.012), and 2 to 5 reported instability events (p=0.001) were significant independent predictors of the presence of BCLs. Conclusion: Bone and cartilage lesions are seen significantly more frequently with increasing patient age, increasing BMI, and patients with 2-5 instability events. Early surgical stabilization for posterior instability may be considered to potentially limit the extent of associated intra-articular injury. [Table: see text][Table: see text][Figure: see text]
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Anderson, Devon E., Riley J. Williams, Thomas M. DeBerardino, Dean C. Taylor, C. Benjamin Ma, Marie S. Kane, and Dennis C. Crawford. "Magnetic Resonance Imaging Characterization and Clinical Outcomes After NeoCart Surgical Therapy as a Primary Reparative Treatment for Knee Cartilage Injuries." American Journal of Sports Medicine 45, no. 4 (January 9, 2017): 875–83. http://dx.doi.org/10.1177/0363546516677255.
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Background: Autologous cartilage tissue implants, including the NeoCart implant, are intended to repair focal articular cartilage lesions. Short-term results from United States Food and Drug Administration (FDA) phase I and phase II clinical trials indicated that the NeoCart implant was safe when surgically applied as a cell-based therapy and efficacious compared with microfracture. Hypothesis: Quantitative magnetic resonance imaging (MRI) analysis would reveal NeoCart tissue maturation through to 60-month follow-up. Study Design: Case series; Level of evidence, 4. Methods: Patients with symptomatic full-thickness cartilage lesions of the distal femoral condyle were treated with NeoCart in FDA clinical trials. Safety and efficacy were evaluated prospectively by MRI and clinical patient-reported outcomes (PROs) through to 60-month follow-up. Qualitative MRI metrics were quantified according to modified MOCART (magnetic resonance observation of cartilage repair tissue) criteria, with an independent evaluation of repair tissue signal intensity. Subjective PROs and objective range of motion (ROM) were obtained at baseline and through to 60 months. Results: Twenty-nine patients treated with NeoCart were observed over a mean of 52.0 ± 15.5 months (median, 60 months). MOCART analyses indicated significant improvement ( P < .001) in cartilage quality from 3 to 24 months, with stabilization from 24 to 60 months. Signal intensity of the repair tissue evolved from hyperintense at early follow-up to isointense after 6 months and to hypointense after 24 months. The temporal progression toward hypointense T2 signals at later time points observed here indicated a further reorganization of the repair tissue toward a dense tissue that was less similar to the surrounding native tissue. However, 80% of patients showed evidence of subchondral bone changes on MRI at all time points; 4 patients (14%) showed no improvement of MRI criteria. Compared with baseline values, significant improvement ( P < .001) was seen in PROs (mean [±SD] baseline to mean [±SD] final follow-up), including the International Knee Documentation Committee score (47.9 ± 17.4 to 75.5 ± 22.1), physical component summary of the Short Form–36 (40.5 ± 7.2 to 51.4 ± 8.1), and all 5 domains of the Knee injury and Osteoarthritis Outcome Score (Pain: 64.8 ± 12.1 to 86.1 ± 17.3; Activities of Daily Living: 75.5 ± 14.8 to 91.6 ± 13.8; Quality of Life: 28.6 ± 15.5 to 69.4 ± 28.0; Symptoms: 65.8 ± 13.8 to 86.6 ± 13.4; Sports and Recreation: 41.4 ± 24.3 to 72.4 ± 28.8). Significant ( P < .0001) decreases from baseline scores for the visual analog scale for pain (34.6 ± 22.5) were seen by 6 months and sustained at final follow-up (14.3 ± 18.4). ROM significantly ( P < .0001) improved from baseline (131.5° ± 7.9°) to final follow-up (140.7° ± 6.3°). Conclusion: Longitudinal MRI analysis demonstrated that NeoCart-based repair tissue is durable and evolves over time. For a majority of patients, this progression trended from an initial hyperintense signal to a hypointense signal at later follow-ups. Changes in radiographic measures over time corresponded with improvement in clinical measures, with maximum benefits experienced at 24-month follow-up. Similarly, clinical efficacy for the total cohort, determined by clinical outcome scores, reached a maximum at 24 months without decline to 60 months. Results from safety and exploratory clinical trials indicate that NeoCart is a safe and effective treatment for articular cartilage lesions through to 5-year follow-up. Registration: NCT00548119 ( ClinicalTrials.gov identifier).
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Alepuz, Eduardo Sánchez, Jaime Alonso Pérez-Barquero, Nadia Jover Jorge, Francisco Lucas García, and Vicente Carratalá Baixauli. "Treatment of The Posterior Unstable Shoulder." Open Orthopaedics Journal 11, no. 1 (August 31, 2017): 826–47. http://dx.doi.org/10.2174/1874325001711010826.
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Background:It is estimated that approximately 5% of glenohumeral instabilities are posterior. There are a number of controversies regarding therapeutic approaches for these patients.Methods:We analyse the main surgery alternatives for the treatment of the posterior shoulder instability. We did a research of the publications related with posterior glenohumeral instability.Results:There are conservative and surgical treatment options. Conservative treatment has positive results in most patients, with around 65 to 80% of cases showing recurrent posterior dislocation.There are multiple surgical techniques, both open and arthroscopic, for the treatment of posterior glenohumeral instability. There are procedures that aim to repair bone defects and others that aim to repair soft tissues and capsulolabral injuries. The treatment should be planned according to each case on an individual basis according to the patient characteristics and the injury type.Surgical treatment is indicated in patients with functional limitations arising from instability and/or pain that have not improved with rehabilitation treatment.The indications for arthroscopic treatment are recurrent posterior subluxation caused by injury of the labrum or the capsulolabral complex; recurrent posterior subluxation caused by capsuloligamentous laxity or capsular redundancy; and multidirectional instability with posterior instability as a primary component. Arthroscopic assessment will help identify potential injuries associated with posterior instability such as bone lesions or defects and lesions or defects of soft tissues.The main indications for open surgery would be in cases of Hill Sachs lesions or broad reverse Bankart lesions not accessible by arthroscopy.We indicated non-anatomical techniques (McLaughlin or its modifications) for reverse Hill-Sachs lesions with impairment of the articular surface between 20% and 50%. Disimpaction of the fracture and placement of bone graft (allograft or autograft) is a suitable treatment for acute lesions that do not exceed 50% of the articular surface and with articular cartilage in good condition. Reconstruction with allograft may be useful in lesions affecting up to 50% of the humeral surface and should be considered when there is a situation of non-viable cartilage at the fracture site. For defects greater than 50% of the articular surface or in the case of dislocations over 6 months in duration where there is poor bone quality, some authors advocate substitution techniques as a treatment of choice. The main techniques for treating glenoid bone defects are posterior bone block and posterior opening osteotomy of the glenoid.Conclusions:The treatment of the posterior glenohumeral instability has to be individualized based on the patient´s injuries, medical history, clinical exam and goals. The most important complications in the treatment of posterior glenohumeral instability are recurrent instability, avascular necrosis and osteoarthritis.
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Brophy, Robert H., Laura J. Huston, Isaac Briskin, Annunziato Amendola, Charles L. Cox, Warren R. Dunn, David C. Flanigan, et al. "Articular Cartilage and Meniscus Predictors of Patient-Reported Outcomes 10 Years After Anterior Cruciate Ligament Reconstruction: A Multicenter Cohort Study." American Journal of Sports Medicine 49, no. 11 (July 29, 2021): 2878–88. http://dx.doi.org/10.1177/03635465211028247.
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Background: Articular cartilage and meniscal damage are commonly encountered and often treated at the time of anterior cruciate ligament reconstruction (ACLR). Our understanding of how these injuries and their treatment relate to outcomes of ACLR is still evolving. Hypothesis/Purpose: The purpose of this study was to assess whether articular cartilage and meniscal variables are predictive of 10-year outcomes after ACLR. We hypothesized that articular cartilage lesions and meniscal tears and treatment would be predictors of the International Knee Documentation Committee (IKDC), Knee injury and Osteoarthritis Outcome Score (KOOS) (all 5 subscales), and Marx activity level outcomes at 10-year follow-up after ACLR. Study Design: Cohort study (prognosis); Level of evidence, 1. Methods: Between 2002 and 2008, individuals with ACLR were prospectively enrolled and followed longitudinally using the IKDC, KOOS, and Marx activity score completed at entry, 2, 6, and 10 years. A proportional odds logistic regression model was built incorporating variables from patient characteristics, surgical technique, articular cartilage injuries, and meniscal tears and treatment to determine the predictors (risk factors) of IKDC, KOOS, and Marx outcomes at 10 years. Results: A total of 3273 patients were enrolled (56% male; median age, 23 years at time of enrollment). Ten-year follow-up was obtained on 79% (2575/3273) of the cohort. Incidence of concomitant pathology at the time of surgery consisted of the following: articular cartilage (medial femoral condyle [MFC], 22%; lateral femoral condyle [LFC], 15%; medial tibial plateau [MTP], 4%; lateral tibial plateau [LTP], 11%; patella, 18%; trochlea, 8%) and meniscal pathology (medial, 37%; lateral, 46%). Variables that were predictive of poorer 10-year outcomes included articular cartilage damage in the patellofemoral ( P < .01) and medial ( P < .05) compartments and previous medial meniscal surgery (7% of knees; P < .04). Compared with no meniscal tear, a meniscal injury was not associated with 10-year outcomes. Medial meniscal repair at the time of ACLR was associated with worse 10-year outcomes for 2 of 5 KOOS subscales, while a medial meniscal repair in knees with grade 2 MFC chondrosis was associated with better outcomes on 2 KOOS subscales. Conclusion: Articular cartilage injury in the patellofemoral and medial compartments at the time of ACLR and a history of medial meniscal surgery before ACLR were associated with poorer 10-year ACLR patient-reported outcomes, but meniscal injury present at the time of ACLR was not. There was limited and conflicting association of medial meniscal repair with these outcomes.
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McIntyre, James Alexander, Ian A. Jones, Alla Danilkovich, and C. Thomas Vangsness. "The Placenta: Applications in Orthopaedic Sports Medicine." American Journal of Sports Medicine 46, no. 1 (April 4, 2017): 234–47. http://dx.doi.org/10.1177/0363546517697682.
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Background: Placenta has a long history of use for treating burns and wounds. It is a rich source of collagen and other extracellular matrix proteins, tissue reparative growth factors, and stem cells, including mesenchymal stem cells (MSCs). Recent data show its therapeutic potential for orthopaedic sports medicine indications. Purpose: To provide orthopaedic surgeons with an anatomic description of the placenta, to characterize its cellular composition, and to review the literature reporting the use of placenta-derived cells and placental tissue allografts for orthopaedic sports medicine indications in animal models and in humans. Study Design: Systematic review. Methods: Using a total of 63 keyword combinations, the PubMed and MEDLINE databases were searched for published articles describing the use of placental cells and/or tissue for orthopaedic sports medicine indications. Information was collected on placental tissue type, indications, animal model, study design, treatment regimen, safety, and efficacy outcomes. Results were categorized by indication and subcategorized by animal model. Results: Outcomes for 29 animal studies and 6 human studies reporting the use of placenta-derived therapeutics were generally positive; however, the placental tissue source, clinical indication, and administration route were highly variable across these studies. Fourteen animal studies described the use of placental tissue for tendon injuries, 13 studies for osteoarthritis or articular cartilage injuries, 3 for ligament injuries, and 1 for synovitis. Both placenta-derived culture-expanded cells (epithelial cells or MSCs) and placental tissue allografts were used in animal studies. In all human studies, commercial placental allografts were used. Five of 6 human studies examined the treatment of foot and ankle pathological conditions, and 1 studied the treatment of knee osteoarthritis. Conclusion: A review of the small number of reported studies revealed a high degree of variability in placental cell types, placental tissue preparation, routes of administration, and treatment regimens, which prohibits making any definitive conclusions. Currently, the clinical use of placenta is limited to only commercial placental tissue allografts, as there are no placenta-derived biological drugs approved for the treatment of orthopaedic sports medicine conditions in the United States. However, this review shows that the application of placental cells or tissue allografts appears to be safe and has potential to improve outcomes for orthopaedic sports medicine indications.
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Mikheev, Mikheev V., and Sergey N. Trushin. "A clinical case of successful treatment of complete abruption of the trachea from the larynx." I.P. Pavlov Russian Medical Biological Herald 29, no. 1 (March 15, 2021): 117–24. http://dx.doi.org/10.23888/pavlovj2021291117-124.
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Tracheobronchial injuries as a consequence of chest blunt trauma are rare. Blunt traumas of the cervical part of the trachea are a rarer pathology presenting a serious diagnostic problem for a clinician. Traumas of the larynx and the trachea account for 40 to 80% of lethality. The tracheas cervical part is vulnerable despite that it is covered with the neck muscles, spine, clavicles, and mandible. In cut/stab wounds, the tracheas cervical part is often damaged together with the adjacent structures. In blunt trauma, under a direct action of a traumatizing agent, the mobile trachea displaces toward the spine, accompanied by damage to the tracheal cartilages, its membranous part, and the soft surrounding tissues with preservation of the integrity of the skin.
Tracheal ruptures along the distance up to 1 cm from the cricoid cartilage account for not more than 4% of all tracheal ruptures. A complete tracheal rupture and its abruption from the larynx are extremely rare pathology. Because of severe respiratory disorders, most victims die at the site where their injury occurred.
This article presents a clinical case of the successful treatment of patient Z., 41 years of age, with complete tracheal abruption from the larynx. The cause of tracheal damage was blunt neck trauma in a traffic accident. A peculiarity of this clinical case was that the victim arrived at a specialized thoracic surgery unit with a functioning tracheostomy two days after the trauma.
Conclusion. Tracheal trauma is a potentially fatal condition. Therefore, early diagnosis of tracheobronchial damage is essential since it permits timely surgical intervention and diminished risk of lethal outcome. When dealing with patients with trauma of the head, neck, and chest with non-corresponding clinical data and the absence of effective recommended standard therapeutic measures, a clinician should become alert and exclude the tracheal and bronchial damage.
X-ray computed tomography and fibrotracheobronchoscopy are strongly recommended as reliable methods to diagnose tracheobronchial damages. In a surgical intervention, it is necessary to perform the primary suture on the trachea, avoid preventive tracheostomy, and delay interventions associated with poorer prognosis and a high complication rate.
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Lansdown, Drew A., Gregory L. Cvetanovich, Alan L. Zhang, Brian T. Feeley, Brian R. Wolf, Carolyn M. Hettrich, Keith M. Baumgarten, et al. "Risk Factors for Intra-articular Bone and Cartilage Lesions in Patients Undergoing Surgical Treatment for Posterior Instability." American Journal of Sports Medicine 48, no. 5 (March 9, 2020): 1207–12. http://dx.doi.org/10.1177/0363546520907916.
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Background: Patients with posterior shoulder instability may have bone and cartilage lesions (BCLs) in addition to capsulolabral injuries, although the risk factors for these intra-articular lesions are unclear. Hypothesis: We hypothesized that patients with posterior instability who had a greater number of instability events would have a higher rate of BCLs compared with patients who had fewer instability episodes. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Data from the Multicenter Orthopaedic Outcomes Network (MOON) Shoulder Group instability patient cohort were analyzed. Patients aged 12 to 99 years undergoing primary surgical treatment for shoulder instability were included. The glenohumeral joint was evaluated by the treating surgeon at the time of surgery, and patients were classified as having a BCL if they had any grade 3 or 4 glenoid or humeral cartilage lesion, reverse Hill-Sachs lesion, bony Bankart lesion, or glenoid bone loss. The effects of the number of instability events on the presence of BCLs was investigated by use of Fisher exact tests. Logistic regression modeling was performed to investigate the independent contributions of demographic variables and injury-specific variables to the likelihood of having a BCL. Significance was defined as P < .05. Results: We identified 271 patients (223 male) for analysis. Bone and cartilage lesions were identified in 54 patients (19.9%) at the time of surgical treatment. A glenoid cartilage injury was most common and was identified in 28 patients (10.3%). A significant difference was noted between the number of instability events and the presence of BCLs ( P = .025), with the highest rate observed in patients with 2 to 5 instability events (32.3%). Multivariate logistic regression modeling indicated that increasing age ( P = .019) and 2 to 5 reported instability events ( P = .001) were significant independent predictors of the presence of BCLs. For bone lesions alone, the number of instability events was the only significant independent predictor; increased risk of bone lesion was present for patients with 1 instability event (OR, 6.1; P = .012), patients with 2 to 5 instability events (OR, 4.2; P = .033), and patients with more than 5 instability events (OR, 6.0; P = .011). Conclusion: Bone and cartilage lesions are seen significantly more frequently with increasing patient age and in patients with 2 to 5 instability events. Early surgical stabilization for posterior instability may be considered to potentially limit the extent of associated intra-articular injury. The group of patients with more than 5 instability events may represent a different pathological condition, as this group showed a decrease in the likelihood of cartilage injury, although not bony injury.
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Bednarski, Piotr, and Karolina Piekarska. "Traumatic Knee Injuries: Analysis of Reporting Data from the Period 2016-2018 Using API Interface of Polish National Health Fund Statistics." Ortopedia Traumatologia Rehabilitacja 22, no. 4 (August 31, 2020): 263–72. http://dx.doi.org/10.5604/01.3001.0014.3462.
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Background. According to WHO statistics, injuries are among the main causes of contemporary health problems. Injury statistics have been showing a continuing upward trend over years. This is due to numerous factors, such as technological progress, increased life expectancy, change of lifestyle, growing popularity of sports and changes in working conditions. The structures affected by injuries within the knee joint include the ligaments, menisci, articular cartilage and patellar retinacula, with the most common injuries being those to the ligamentous apparatus and menisci. The main objective of this paper is to determine the number of patients hospitalised due to a primary knee injury. Material and methods. Determination of the number of patients hospitalised due to a primary knee injury was performed using the API Interface of National Health Fund (NFZ) Statistics-Benefits Version 1.0. The process of acquiring information on the number of patients consisted of four stages: preparation of a list of primary diagnoses according to ICD-10 classification, analysis of the ordinances of the President of NFZ concerning the conclusion and implementation of contracts on hospital treatment to select products that could be used to bill hospitalisation of patients with selected types of diagnosis, generating medical data using the API Interface of National Health Fund Statistics–Benefits and analysis of reporting data obtained. Results. According to data reported to NFZ, a total of 101,773 patients were hospitalised due to traumatic knee injuries over the period of three years (2016–2018), which gives an average of ca. 34,000 patients annually. Conclusions. 1. Knee injuries represent a very serious health problem in Poland. 2. Knee injuries most frequently affect the ligaments and menisci. 3. It seems necessary to develop a complete nation-wide database with up-to-date information on injuries in Poland that would enable providers to adapt medical services to the current needs of the patients.
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Klein, Céline, Plancq Marie-Christine, François Deroussen, Elodie Haraux, and Richard Gouron. "Treatment options for soft tissue defects in severe foot trauma in children." Journal of Wound Care 30, no. 6 (June 2, 2021): 432–38. http://dx.doi.org/10.12968/jowc.2021.30.6.432.
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Objective: Severe foot trauma in children is a therapeutic challenge, with presence of devitalised and soiled distal tissues. Several reconstruction and covering procedures can be applied, including artificial dermis (AD), negative pressure wound therapy (NPWT), fasciocutaneous flaps and free flaps. Here, we have developed and evaluated an algorithm for treating severe foot injuries with skin defects in children Method: Paediatric cases of severe foot injury treated over a 16-year period were retrospectively reviewed. Characteristics of the injuries, surgical procedures, complications and the modified Kitaoka score (clinical and functional rating score of the ankle and foot) were recorded. Results: A total of 18 children were included. The mean age at the time of injury was four years and 10 months (range: 1–11 years). The mean follow-up period was 6.2 years. Of the children, 13 presented with an amputation (12 partial foot amputations and one whole ankle and foot). The skin defect was combined with tendon exposure in nine cases, and/or bone and cartilage in seven cases, and heel damage in two cases. A flap was implemented in eight cases, of which one failed. NPWT was used in 13 patients (for an average of 21 days) and was combined with AD in six patients. The mean modified Kitaoka score was 68 (range: 55–80). Additional surgery during the follow-up period was required in seven patients (dorsal skin retraction, a thick flap, osteoma, trophic ulcer or ankle deviation). Conclusion: Our algorithm suggests different therapeutic strategies for skin coverage and healing, depending on the size of the lesion and the exposed structures, and seems to offer good results. These procedures should be combined with NPWT to optimise these results (improved healing, reduced infections, decreased skin defects and enhanced granulation tissue) and so should be used more frequently.
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Westermann, Robert W., Kurt P. Spindler, Carolyn M. Hettrich, and Brian R. Wolf. "Outcomes Following ACL and Grade III MCL Injuries." Orthopaedic Journal of Sports Medicine 5, no. 3_suppl3 (March 1, 2017): 2325967117S0012. http://dx.doi.org/10.1177/2325967117s00126.
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Objectives: Complete disruptions of the medial collateral ligament (MCL) are rare, but do occur with anterior cruciate ligament (ACL) tears. Complete ACL/MCL injuries may be managed with ACL reconstruction and either conservative or operative treatment of the MCL. MCL tear location has also been associated with outcome. We hypothesized that outcomes would be best with acute surgery and worse with proximal MCL tears.We also hypothesized that operative management of MCL injuries would not influence outcome. Methods: Patients enrolled in a multicenter prospective longitudinal cohort who underwent unilateral primary ACL reconstruction between 2002-2008 and who had 2-year follow-up were evaluated. Patients with concomitant grade III MCL injuries treated either operatively or non-operatively were identified. Concurrent injuries (to meniscus or articular cartilage) and subsequent surgeries were documented. Comparisons of surgical chronicity (before and after 30 days from injury) and MCL tear location (femoral or tibial) were performed. Patient reported outcomes (KOOS, IKDC and Marx activity scores) were measured at the time of ACL reconstruction and at 2-year follow-up. Results: Initially, 3028 patients were identified to have undergone primary ACL reconstruction in the cohort during the identified time frame, with 2586 patients completing 2-year follow-up (85%). Complete MCL tears were documented in 1.1% (27/2586) of the cohort: 16 operatively managed patients and 11 conservatively treated MCLs during ACL reconstruction. Concurrent articular pathology was similar between groups. Clinically important differences were seen in baseline KOOS (all subscales) and IKDC scores, with lower scores seen in patients who underwent operative MCL treatment. Reoperation for arthrofibrosis was higher after operative repair of the MCL (19%) versus nonoperative treatment (9%). At 2 years the non-operative MCL cohort maintained significantly better KOOS Sports Rec (88.2 versus 74.4), KOOS QOL (81.3 versus 68.4), and IKDC (87.6 versus 76.0) scores compared to the MCL surgery group. Marx activity scores were equal between groups at the time of study enrollment, however patients who underwent operative MCL management had lower activity scores at 2 years (6.5 versus 10.7). Tibial-sided MCL injuries were associated with worse baseline outcomes compared with femoral-sided MCL injuries in terms of KOOS ADL, Sports Rec, and QOL subscales, but these differences were resolved by 2 years. Surgical chronicity did not influence 2-year outcome. Conclusion: Complete and combined ACL/MCL injuries are rare. Both operative and nonoperative management of MCL tears in our cohort demonstrated clinical improvements between study enrollment and 2-year follow-up. MCL surgery during ACL reconstruction was associated with more frequent stiffness, worse patient-reported outcomes and lower activity at 2 years. There may be a subset of patients with severe combined ACL and medial knee injuries that may benefit from operative management, however, that patient population has yet to be defined.
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Utsunomiya, Hajime, Xueqin Gao, Zhenhan Deng, Haizi Cheng, Gilberto Nakama, Alex C. Scibetta, Sudheer K. Ravuri, et al. "Biologically Regulated Marrow Stimulation by Blocking TGF-β1 With Losartan Oral Administration Results in Hyaline-like Cartilage Repair: A Rabbit Osteochondral Defect Model." American Journal of Sports Medicine 48, no. 4 (February 6, 2020): 974–84. http://dx.doi.org/10.1177/0363546519898681.
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Background: Microfracture or bone marrow stimulation (BMS) is often the first choice for clinical treatment of cartilage injuries; however, fibrocartilage, not pure hyaline cartilage, has been reported because of the development of fibrosis in the repair tissue. Transforming growth factor β1 (TGF-β1), which can promote fibrosis, can be inhibited by losartan and potentially be used to reduce fibrocartilage. Hypothesis: Blocking TGF-β1 would improve cartilage healing in a rabbit knee BMS model via decreasing the amount of fibrocartilage and increasing hyaline-like cartilage formation. Study Design: Controlled laboratory study. Methods: An osteochondral defect was made in the patellar groove of 48 New Zealand White rabbits. The rabbits were divided into 3 groups: a defect group (defect only), a BMS group (osteochondral defect + BMS), and a BMS + losartan group (osteochondral defect + BMS + losartan). For the rabbits in the BMS + losartan group, losartan was administrated orally from the day after surgery through the day of euthanasia. Rabbits were sacrificed 6 or 12 weeks postoperatively. Macroscopic appearance, microcomputed tomography, histological assessment, and TGF-β1 signaling pathway were evaluated at 6 and 12 weeks postoperatively. Results: The macroscopic assessment of the repair revealed that the BMS + losartan group was superior to the other groups tested. Microcomputed tomography showed superior healing of the bony defect in the BMS + losartan group in comparison with the other groups. Histologically, fibrosis in the repair tissue of the BMS + losartan group was significantly reduced when compared with the other groups. Results obtained with the modified O’Driscoll International Cartilage Repair Society grading system yielded significantly superior scores in the BMS + losartan group as compared with both the defect group and the BMS group ( F value: 15.8, P < .001, P = .012, respectively). TGF-β1 signaling and TGF-β-activated kinase 1 of the BMS + losartan group were significantly suppressed in the synovial tissues. Conclusion: By blocking TGF-β1 with losartan, the repair cartilage tissue after BMS was superior to the other groups and consisted primarily of hyaline cartilage. These results should be easily translated to the clinic because losartan is a Food and Drug Administration–approved drug and it can be combined with the BMS technique for optimal repair of chondral defects. Clinical Relevance: Biologically regulated marrow stimulation by blocking TGF-β1 (oral intake of losartan) provides superior repair via decreasing fibrocartilage formation and resulting in hyaline-like cartilage as compared with outcomes from BMS only.
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Utsunomiya, Hajime, Xueqin Gao, Zhenhan Deng, Haizi Cheng, Alex Scibetta, Sudheer Ravuri, Walter R. Lowe, Marc J. Philippon, Tamara Alliston, and Johnny Huard. "Improvement of Cartilage Repair With Biologically Regulated Marrow Stimulation by Blocking TGF-β1 in A Rabbit Osteochondral Defect Model." Orthopaedic Journal of Sports Medicine 7, no. 7_suppl5 (July 2019): 2325967119S0026. http://dx.doi.org/10.1177/2325967119s00263.
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Objectives: Application of growth factors for cartilage injury has been considered in recent studies; however, the effect of blocking detrimental growth factors for cartilage injury has not been well described. It is known that transforming growth factor beta 1 (TGF-β1) is overproduced in osteoarthritic joints. It has been reported that angiotensin II-induced activation of TGF-β1-pSmad2/3 signaling, which can result in fibrosis, can be inhibited by losartan (an FDA-approved hypertension drug). Although bone marrow stimulation (BMS) is often the first choice for clinical treatment of cartilage injuries, fibrocartilage, not pure hyaline cartilage, has been reported after BMS surgery. Our lab has shown that blocking TGF-β1 with losartan can decrease fibrosis in muscle injury models. We hypothesized that blocking TGF-β1 would improve cartilage healing in a rabbit osteochondral defect injury model via decreasing the amount of fibrocartilage formation, and increase hyaline-like cartilage formation, thus enhancing BMS-mediated cartilage repair. Methods: An osteochondral defect (diameter: 5 mm, depth: 2 mm) was made in the patellar groove of 48 New Zealand White rabbits. The rabbits were divided into 3 groups (N=8/group/time point) randomly: a control group (defect only), a BMS group (osteochondral defect + BMS), and a losartan-treated group (osteochondral defect + BMS + losartan). For the rabbits in the losartan-treated group, 10mg/kg/day dose of losartan was administrated orally from the day after surgery through the day of euthanasia. Rabbits were sacrificed 6 weeks and 12 weeks post-operatively, respectively. Macroscopic appearance, microcomputed tomography (microCT), histological assessment, and gene expression were evaluated. Results: The losartan-treated group scored highest in the International Cartilage Repair Society (ICRS) macroscopic assessment. MicroCT showed healing of the bony defect in the losartan-treated group, in comparison to no healing in the control group and partial healing in the BMS group. Histologically, results obtained using the Modified O’Driscoll ICRS grading system yielded significantly superior scores in the losartan-treated group compared to both the control group and the BMS group (12 weeks, mean [SD], control: 30.1 [3.6], BMS: 35.0 [3.7], losartan-treated: 41.4 [4.7]; p< 0.001 compared to control group, p= 0.012 compared to BMS group, respectively). TGF-β1 signaling and TGF-β activated kinase-1 were suppressed in the fat pad tissues. Conclusion: Biologically regulated BMS by blocking TGF-β1 (oral intake of losartan) provided superior cartilage repair via decreasing fibrocartilage formation and resulting in hyaline-like cartilage, compared to outcomes from BMS only. FDA-approved blocking growth factor drugs will be a new frontier of biologically regulated BMS, which will be easily translatable into clinical settings as an off-label use. [Figure: see text]
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Jones, Morgan H., Sameer R. Oak, Jack T. Andrish, Robert H. Brophy, Charles L. Cox, Warren R. Dunn, David C. Flanigan, et al. "Predictors of Radiographic Osteoarthritis 2 to 3 Years After Anterior Cruciate Ligament Reconstruction: Data From the MOON On-site Nested Cohort." Orthopaedic Journal of Sports Medicine 7, no. 8 (August 2019): 232596711986708. http://dx.doi.org/10.1177/2325967119867085.
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Background: Multiple studies have shown that patients are susceptible to posttraumatic osteoarthritis (PTOA) after an anterior cruciate ligament (ACL) injury, even with ACL reconstruction (ACLR). Prospective studies using multivariable analysis to identify risk factors for PTOA are lacking. Purpose/Hypothesis: This study aimed to identify baseline predictors of radiographic PTOA after ACLR at an early time point. We hypothesized that meniscal injuries and cartilage lesions would be associated with worse radiographic PTOA using the Osteoarthritis Research Society International (OARSI) atlas criteria. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 421 patients who underwent ACLR returned on-site for standardized posteroanterior semiflexed knee radiography at a minimum of 2 years after surgery. The mean age was 19.8 years, with 51.3% female patients. At baseline, data on demographics, graft type, meniscal status/treatment, and cartilage status were collected. OARSI atlas criteria were used to grade all knee radiographs. Multivariable ordinal regression models identified baseline predictors of radiographic OARSI grades at follow-up. Results: Older age (odds ratio [OR], 1.06) and higher body mass index (OR, 1.05) were statistically significantly associated with a higher OARSI grade in the medial compartment. Patients who underwent meniscal repair and partial meniscectomy had statistically significantly higher OARSI grades in the medial compartment (meniscal repair OR, 1.92; meniscectomy OR, 2.11) and in the lateral compartment (meniscal repair OR, 1.96; meniscectomy OR, 2.97). Graft type, cartilage lesions, sex, and Marx activity rating scale score had no significant association with the OARSI grade. Conclusion: Older patients with a higher body mass index who have an ACL tear with a concurrent meniscal tear requiring partial meniscectomy or meniscal repair should be advised of their increased risk of developing radiographic PTOA. Alternatively, patients with an ACL tear with an articular cartilage lesion can be reassured that they are not at an increased risk of developing early radiographic knee PTOA at 2 to 3 years after ACLR.
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Fleming, Braden C., Paul D. Fadale, Michael J. Hulstyn, Robert M. Shalvoy, Heidi L. Oksendahl, Gary J. Badger, and Glenn A. Tung. "The Effect of Initial Graft Tension After Anterior Cruciate Ligament Reconstruction." American Journal of Sports Medicine 41, no. 1 (November 9, 2012): 25–34. http://dx.doi.org/10.1177/0363546512464200.
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Background: The initial graft tension applied at the time of anterior cruciate ligament (ACL) reconstruction alters joint contact and may influence cartilage health. The objective was to compare outcomes between 2 commonly used “laxity-based” initial graft tension protocols. Hypotheses: (1) The high-tension group would have less knee laxity, improved clinical and patient-oriented outcomes, and less cartilage damage than would the low-tension group after 36 months of healing. (2) The outcomes of the high-tension group would be equivalent to those of a matched control group. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: Ninety patients with isolated unilateral ACL injuries were randomized to undergo ACL reconstruction using 1 of 2 initial graft tension protocols: (1) autografts tensioned to restore normal anterior-posterior (AP) laxity at the time of surgery (ie, low tension; n = 46) and (2) autografts tensioned to overconstrain AP laxity by 2 mm (ie, high tension; n = 44). Sixty matched healthy patients formed the control group. Outcomes were assessed preoperatively, intraoperatively, and at 6, 12, and 36 months after surgery. Results: No significant differences were found between the 2 initial graft tension protocols for any of the outcome measures at 36 months. However, there were differences when comparing the 2 treatment groups to the control group. On average, AP laxity was 2 mm greater in the ACL-reconstructed groups than in the control group ( P < .007). International Knee Documentation Committee (IKDC) knee evaluation scores, peak isokinetic knee extension torques, and 4 of 5 Knee Osteoarthritis Outcome Scores (KOOS) were significantly worse than the control group ( P < .001, P < .027, and P < .05, respectively). Short Form–36 Health Survey (SF-36) scores and reinjury rates were similar between groups at 36 months. Although there were significant changes in radiography and magnetic resonance imaging present in the ACL-reconstructed knees of both treatment groups, the magnitude was relatively small and likely clinically insignificant at 36 months. Conclusion: Both laxity-based initial graft tension protocols produced similar outcomes without fully restoring joint function or patient-oriented outcomes (KOOS) when compared with the control group. There was minimal evidence of cartilage damage 36 months after surgery.
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Heldt, Brett, Elsayed Attia, Raymond Guo, Indranil Kushare, and Theodore Shybut. "EFFECT OF SKELETAL MATURITY ON INCIDENCE OF ASSOCIATED MENISCAL AND CHONDRAL INJURIES IN ANTERIOR CRUCIATE LIGAMENT INJURED KNEES." Orthopaedic Journal of Sports Medicine 9, no. 7_suppl3 (July 1, 2021): 2325967121S0010. http://dx.doi.org/10.1177/2325967121s00105.
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Background: Acute anterior cruciate ligament(ACL) rupture is associated with a significant incidence of concomitant meniscal and chondral injuries. However, to our knowledge, the incidence of these concomitant injuries in skeletally immature(SI) versus skeletally mature(SM) patients has not been directly compared. SI patients are a unique subset of ACL patients because surgical considerations are different, and subsequent re-tear rates are high. However, it is unclear if the rates and types of meniscal and chondral injuries differ. Purpose: The purpose of this study is to compare associated meniscal and chondral injury patterns between SI and SM patients under age 21, treated with ACL reconstruction for an acute ACL tear. We hypothesized that no significant differences would be seen. Methods: We performed a single-center retrospective review of primary ACL reconstructions performed from January 2012 to April 2020. Patients were stratified by skeletal maturity status based on a review of records and imaging. Demographic data was recorded, including age, sex, and BMI. Associated intra-articular meniscal injury, including laterality, location, configuration, and treatment were determined. Articular cartilage injury location, grade, and treatments were determined. Revision rates, non-ACL reoperation rates, and time to surgery were also compared between the two groups. Results: 785 SM and 208 SI patients met inclusion criteria. Mean BMI and mean age were significantly different between groups. Meniscal tear rates were significantly greater in SM versus SI patients in medial meniscus tears(P<.001), medial posterior horn tears(P=.001), medial longitudinal tears configuration(P=.007), lateral Radial configuration(P=.002), and lateral complex tears(P=.011). Medial repairs(P<.001) and lateral partial meniscectomies(P=.004) were more likely in the SM group. There was a significantly greater number of chondral injuries in the SM versus SI groups in the Lateral(p=.007) and medial compartments(P<.001). SM patients had a significantly increased number of outerbridge grade 1 and 2 in the Lateral(P<.001) and Medial Compartments(P=.013). ACL revisions(P=.019) and Non-ACL reoperations(P=.002) were significantly greater in the SI patients compared to SM. No other significant differences were noted. Conclusion: SM ACL injured patients have a significantly higher rate of medial meniscus tears and medial longitudinal configurations treated with repair, and a significantly higher rate of radial and/or complex lateral meniscus tears treated with partial meniscectomy compared to the SI group. We also found a significantly higher rate of both medial and lateral compartment chondral injuries, mainly grades 1 and 2, in SM compared to SI patients. Conversely, SI ACL reconstruction patients had higher revision and subsequent non-ACL surgery rates.
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Zeng, Wei-Nan, Yun Zhang, Duan Wang, Yi-Ping Zeng, Hao Yang, Juan Li, Cheng-Pei Zhou, et al. "Intra-articular Injection of Kartogenin-Enhanced Bone Marrow–Derived Mesenchymal Stem Cells in the Treatment of Knee Osteoarthritis in a Rat Model." American Journal of Sports Medicine 49, no. 10 (July 2, 2021): 2795–809. http://dx.doi.org/10.1177/03635465211023183.
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Background: In this study, we investigated the in vitro and in vivo chondrogenic capacity of kartogenin (KGN)–enhanced bone marrow–derived mesenchymal stem cells (BMSCs) for cartilage regeneration. Purpose: To determine (1) whether functionalized nanographene oxide (NGO) can effectively deliver KGN into BMSCs and (2) whether KGN would enhance BMSCs during chondrogenesis in vitro and in vivo in an animal model. Study Design: Controlled laboratory study. Methods: Functionalized NGO with line chain amine-terminated polyethylene glycol (PEG) and branched polyethylenimine (BPEI) were used to synthesize biocompatible NGO-PEG-BPEI (PPG) and for loading hydrophobic KGN molecules noncovalently via π–π stacking and hydrophobic interactions (PPG-KGN). Then, PPG-KGN was used for the intracellular delivery of hydrophobic KGN by simple mixing and co-incubation with BMSCs to acquire KGN-enhanced BMSCs. The chondrogenic efficacy of KGN-enhanced BMSCs was evaluated in vitro. In vivo, osteoarthritis (OA) was induced by anterior cruciate ligament transection in rats. A total of 5 groups were established: normal (OA treated with nothing), phosphate-buffered saline (PBS; intra-articular injection of PBS), PPG-KGN (intra-articular injection of PPG-KGN), BMSCs (intra-articular injection of BMSCs), and BMSCs + PPG-KGN (intra-articular injection of PPG-KGN–preconditioned BMSCs). At 6 and 9 weeks after the surgical induction of OA, the rats received intra-articular injections of PPG-KGN, BMSCs, or KGN-enhanced BMSCs. At 14 weeks after the surgical induction of OA, radiographic and behavioral evaluations as well as histological analysis of the knee joints were performed. Results: The in vitro study showed that PPG could be rapidly uptaken in the first 4 hours after incubation, reaching saturation at 12 hours and accumulating in the lysosome and cytoplasm of BMSCs. Thus, PPG-KGN could enhance the efficiency of the intracellular delivery of KGN, which showed a remarkably high chondrogenic differentiation capacity of BMSCs. When applied to an OA model of cartilage injuries in rats, PPG-KGN–preconditioned BMSCs contributed to protection from joint space narrowing, pathological mineralization, OA development, and OA-induced pain, as well as improved tissue regeneration, as evidenced by radiographic, weightbearing, and histological findings. Conclusion: Our results demonstrate that KGN-enhanced BMSCs showed markedly improved capacities for chondrogenesis and articular cartilage repair. We believe that this work demonstrates that a multifunctional nanoparticle-based drug delivery system could be beneficial for stem cell therapy. Our results present an opportunity to reverse the symptoms and pathophysiology of OA. Clinical Relevance: The intracellular delivery of KGN to produce BMSCs with enhanced chondrogenic potential may offer a new approach for the treatment of OA.
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Rijal, Raju, BP Shrestha, GP Khanal, P. Chaudhary, S. R. Paneru, RPS Kalawar, and P. Rai. "A study to evaluate the pattern and types of treatment of tibial plateau fracture at BPKIHS Dharan." Health Renaissance 13, no. 3 (August 3, 2017): 65–72. http://dx.doi.org/10.3126/hren.v13i3.17929.
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Background: Tibial plateau fractures occur due to a combination of axial loading and varus/valgus forces leading to articular cartilage damage, mal-alignment and secondary osteoarthritis and functional loss.Objective: To know pattern and types of treatment of tibial plateau fractures and effect of fracture pattern on functional outcome. Method: We conducted prospective study over a period of one year. Fifty-three patients with tibial plateau fractures were presented during that period. Eighteen patients were excluded due to significant polytrauma and major limb injuries. Four patients did not give consent for the study. Thirty-one patients meeting the criteria were enrolled in the study. Two patients were lost during follow up. Remaining patients were evaluated at the end of one year. Data were recorded and analyzed using appropriate statistical methods.Result: Among 29 patients, 21 were male. Mean age was 35.07±11.96 years. 55.2% had RTA followed by 31 percent fall injury. 65% were treated with open reduction and internal fixation with plating followed by AK pop cast, cannulated cancellous screw and ilizarov fixation. Bone grafting was done in 3 cases. Twenty-five patients had excellent, two had good, two had fair and no patients had poor result. Three patients (10%) had complications. One had common peroneal nerve palsy, two had wound infections and no patient demonstrated early arthritic changes.Conclusion: Tibial plateau fractures treated with different modalities at our institute has been associated with excellent and good functional outcome at the end of short term follow up.Health Renaissance 2015;13 (3): 65-72
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Martín, Anthony R., Jay M. Patel, Hannah M. Zlotnick, Mackenzie L. Sennet, James L. Carey, and Robert L. Mauck. "2061 Acellular hyaluronic acid scaffold with growth factor delivery for cartilage repair in a large animal model." Journal of Clinical and Translational Science 2, S1 (June 2018): 3. http://dx.doi.org/10.1017/cts.2018.43.
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OBJECTIVES/SPECIFIC AIMS: Focal cartilage injuries of the knee joint are common and present a treatment challenge due to minimal intrinsic repair. Cartilage tissue engineering techniques currently used in clinical practice are expensive, cumbersome, and often ineffective in patients with mechanical or medical comorbidities. To address these issues, we developed an acellular nanofibrous scaffold with encapsulated growth factors designed to enhanced articular cartilage repair. Our goal is to evaluate this technology in vitro and pilot a large animal model for eventual translation into human subjects. METHODS/STUDY POPULATION: Hyaluronic acid (HA, 65 kDa) will be methacrylated (~40% modification, MeHA) and conjugated with cell-adhesive (RGD) groups. A solution of 4% wt/vol MeHA, 2% wt/vol polyethylene oxide (900 kDa), 0.05% wt/vol Irgacure 2959, and 0.005% wt/vol stromal cell-derived factor-1α (SDF-1α) and/or transforming growth factor-β3 (TGF-β3) will be prepared in ddH2O. The solution will be electrospun onto a rotating mandrel to achieve a dry scaffold thickness of 0.5 mm. The scaffold matt will be UV cross-linked and 5 mm-diameter samples will be cut out. Four groups of scaffolds will be prepared: MeHA, MeHA+SDF, MeHA+TGF, MeHA+SDF+TGF. All groups will be evaluated for fiber diameter, swell thickness, equilibrium compressive modulus, degradation rate, and growth factor release rate over 4 weeks (n=10). Scaffolds will also be seeded with juvenile porcine MSCs (5×104) in 200 μL of medium incubated for 24 hours. Seeded scaffolds will be evaluated for equilibrium compressive modulus, cell infiltration, and chondrogenesis at 4 and 8 weeks (n=10). Scaffolds will then be evaluated in a juvenile Yucatan minipig cartilage defect model. In total, 6 animals will undergo bilateral knee surgery to create four 4 mm-diameter full-thickness cartilage defects in each trochlear grove. All defects will receive microfracture to release marrow elements. Each knee will receive 2 scaffolds of the same group (replicates) with paired microfracture controls, resulting in a sample size of 3. Animals will be sacrificed at 12 weeks and defects will be evaluated via non-destructive indentation testing for mechanical properties, microCT for defect fill and subchondral bone morphology, and histology for ICRS II Visual Histological Assessment Scoring. RESULTS/ANTICIPATED RESULTS: Our preliminary studies have shown reliable replication of electrospun MeHA scaffolds. We anticipate cross-linking density to correlate positively with compressive modulus, and negatively with swell thickness, degradation rate, and growth factor release rate. We anticipate the addition of SDF-1α and TGF-β3 to increase cell infiltration and chondrogenesis, respectively, within seeded scaffolds. Similarly, we expect minipig defects treated with growth factor-releasing scaffolds to show greater mechanical properties, defect fill, and ICRS II score compared with MeHA scaffolds without growth factor. DISCUSSION/SIGNIFICANCE OF IMPACT: This study has the potential to show how an HA-based cell-free scaffold can be augmented with 2 growth factors that act synergistically to improve cartilage repair in a large animal model. This technology would improve upon the cell-free scaffolds already used clinically for autologous matrix-induced chondrogenesis and is directly translatable.
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Engebretsen, L., and R. Bahr. "Surgical treatment of cartilage injuries." European Surgery 36, no. 1 (February 2004): 13–19. http://dx.doi.org/10.1007/s10353-004-0029-z.
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Glenn, Rachel L., Tyler A. Gonzalez, Alexander B. Peterson, and Jonathan Kaplan. "Minimally Invasive Dorsal Cheilectomy and Hallux Metatarsal Phalangeal Joint Arthroscopy for the Treatment of Hallux Rigidus." Foot & Ankle Orthopaedics 6, no. 1 (January 1, 2021): 247301142199310. http://dx.doi.org/10.1177/2473011421993103.
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Background: Hallux rigidus (HR) is a common source of forefoot pain and disability. For those who fail nonoperative treatment, minimally invasive dorsal cheilectomy (MIDC) is an increasingly popular alternative to the open approach with early positive results. Early failures may be due to lose bone debris from the MIDC as well as other intra-articular pathology that cannot be addressed with MIDC alone. Metatarsophalangeal (MTP) arthroscopy can be used in addition to MIDC to assess the joint after MIDC and address any intra-articular pathology while still maintaining the benefits of minimally invasive surgery. We report our clinical outcomes following MIDC combined with MTP arthroscopy. Methods: From November 2017 to July 2020, a retrospective analysis of all MIDC cheilectomies with MTP arthroscopy performed by the 2 senior authors was done. Wound complications, infections, revision rates, need for future surgery, conversion to fusion rates, pre- and postoperative range of motion, visual analog scale (VAS) scores, time to return to normal shoe, intraoperative arthroscopic findings, and operative time were collected. Follow-up average was 16.5 months (range 3-33 months). Results: A total of 20 patients were included with an average follow-up of 16.5 months. The average VAS score improved from 7.05 preoperatively to 0.75 postoperatively ( P < .05). Average range of motion in dorsiflexion increased from 32 to 48 degrees ( P < .05) and plantarflexion increased from 15 to 19 degrees plantarflexion ( P < .05). All patients were weightbearing as tolerated immediately after surgery in a postoperative shoe and transitioned to a regular shoe at average of 2.1 weeks. We had no wound infections, wound complications, revision surgeries, tendon injuries or nerve damage. One patient required conversion to a fusion 3 years after the index procedure. Average tourniquet time was 30.39 minutes (range 17-60 minutes) and total average operating room time was 59.7 minutes (range 40-87 minutes). On arthroscopic evaluation of the MTP joint after MIDC, 100% of patients had bone debris, 100% had synovitis, 10% had loose bodies, and 30% had large cartilage flaps within the joint. Conclusion: MIDC and first MTP joint arthroscopy for treatment of hallux rigidus provide improved pain relief with minimal complications while still maintaining the benefits touted for minimally invasive operative procedures. Additionally, we have shown a high rate of intra-articular debris along with intra-articular pathology such as synovitis, loose chondral flaps, and loose bodies that exist after MIDC. This combined procedure has the potential for improving patient outcomes and may minimize risk of future revision surgeries compared with MIDC alone. Level of Evidence: Level IV, case series study.
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Dang, Alexis C., and Alfred C. Kuo. "Cartilage Biomechanics and Implications for Treatment of Cartilage Injuries." Operative Techniques in Orthopaedics 24, no. 4 (December 2014): 288–92. http://dx.doi.org/10.1053/j.oto.2014.07.001.
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Davis, J. T., and Deryk G. Jones. "Treatment of knee articular cartilage injuries." Current Opinion in Orthopaedics 15, no. 2 (April 2004): 92–99. http://dx.doi.org/10.1097/00001433-200404000-00009.
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Onofre, Rubiliza DC, and Rene Louie C. Gutierrez. "Orbital Floor Fracture Reconstruction Using Conchal Auricular Cartilage Graft." Philippine Journal of Otolaryngology-Head and Neck Surgery 25, no. 2 (December 3, 2010): 42–45. http://dx.doi.org/10.32412/pjohns.v25i2.635.
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Orbital wall fractures result from external impact injuries which cause an abrupt increase in intraorbital pressure.1 Patients usually present to the emergency room with periorbital swelling and limited eye movements, with or without changes in vision. Relatively common in the Philippines, these fractures are frequently caused by violent assault followed by vehicular accidents involving motorcycles.2 Among 119 maxillofacial trauma cases seen and treated by the Department of Otorhinolaryngology of the East Avenue Medical Center from 2008-2009, 42 were diagnosed as cases of orbital fractures with 36% having concomitant involvement of the orbital floor. Various techniques in diagnosis and treatment developed in the past 20 years, each having its own strengths and weaknesses. The challenge of choosing which among these methods will best achieve the goals of function and aesthetics always confronts surgeons, particularly in a developing country setting.
We present a case of bilateral orbital floor fractures with diplopia repaired with conchal auricular cartilage graft in a 22 year old female.
CASE REPORT
A 22 year old female was immediately brought to our emergency room following a head-on collision with an Asian utility vehicle while driving a motorcycle without a helmet. She was conscious and coherent with stable vital signs.
On examination, contusion hematomas were noted over both periorbital areas. Visual acuity was 20/30 OD and 20/40 OS with bilateral limitations of extraocular muscle movement. Bilateral ocular pressures were measured at 14.6 mmHg. Craniofacial CT Scans revealed linear frontal bone fractures with subdural hemorrhages and pneumocephalus in the frontal area, fractures of the calvarial bones, lateral orbital walls, inferior orbital rims and orbital floors (Figure 1). A mannitol drip was started for the hemorrhage.
She developed a persistent headache and binocular vertical diplopia with monocular diplopia, OS on the left gaze accompanied by pain on lateral left duction. Visual acuity was 20/25 OU. On the 17th hospital day, she underwent open reduction and internal fixation of multiple facial fractures using titanium plates and screws with reconstruction of both orbital floors using conchal cartilage autografts. The right eye diplopia resolved on the third postoperative day while the diplopia on left lateral downward gaze in the left eye resolved from the ninth postoperative day until the day of discharge.
There was complete resolution of diplopia and improvement in visual acuity to 20/20 OD and 20/25 OS on follow up at one year.
DICUSSION
Orbital floor fractures are relatively common midfacial injuries encountered in urban areas2 and were first described by Smith and Regan in 1957.1 Since then, many articles have been written about their diagnosis and treatment, including indications and optimal time for surgery as well as optimal surgical methods.1 Epidemiological studies reveal that despite different settings, the majority of cases involve the young male population with violent assault as the most prominent etiology accounting for 37.8% of orbital blowout fractures; motor vehicle accidents came in at second with 17.6%.; with the remaining fractures resulting from athletics (14.1%).2 To our knowledge, local reports have not been published but similarities in profile can be deduced.
Orbital floor fractures, also known as blowout fractures, imply that the orbital rims have remained intact, whereas one or more walls of the orbit, typically the floor has fractured.3 Orbital floor fractures can be classified into pure and impure according to extent of bone involvement (Table 1). Pure blowout fractures are fractures of the floor not involving the rim while impure blowout fractures have rim extension.3 Pure orbital floor fractures are further classified as trapdoor or non-trapdoor. Trapdoor fractures are those in which either edge of the inferior orbital wall is attached to its original position, while non-trapdoor fractures are those in which the inferior orbital wall is completely separated from its original position and the periorbital tissue has prolapsed into the maxillary sinus1 (Figure 2). These fractures can be also be classified by location: anterior, posterior and anteroposterior1,4 (Figure 3). Our patient presented with non trapdoor type orbital floor fractures measuring 10 x 4 mm on the right and 10 x 5mm on the left.
Patients with orbital floor fractures often complain of blurred vision and pain on eye movement. Physical examination also elicits diplopia, accompanying limitation of eye movement and enophthalmos on the affected side. These signs and symptoms are due to (1) herniation of orbital contents with concomitant partial atrophy of extraocular muscles and to (2) an increase in the volume of the orbital cavity with possible compression of the optic nerve.4 Because of these features, orbital floor fractures are classified as both Otorhinolaryngologic and Ophthalmologic emergencies that warrant immediate surgical treatment especially if the patient presents with blurred vision.3,5
Confirmatory imaging studies help locate and assess the extent of orbital floor injury. These include radiographs and computed tomography of the facial bones. The commonly used radiograph is the chin-to-nose or Water’s view. This gives a view of the whole orbital area and may reveal a pathognomonic “tear drop” sign, seen as an elliptical opacity underneath the inferior orbital rim, that represents orbital contents, usually orbital fat, that herniated through the fracture.1,3 However, facial computed tomography is still the most useful imaging tool in assessing orbital floor fractures.1,2,3,4 It is usually requested without contrast using 3 different cuts: coronal, axial and sagittal. Coronal cuts reveal discontinuity of the inferior orbital rims with concomitant soft tissue sublaxation; axial cuts present the extent of areas involved while sagittal cuts help locate if the fracture is anterior, posterior or anteroposterior.1,4
The goal of surgical repair in orbital floor fractures is two-fold: to reposition herniated orbital fat and tissue back in the orbit; and to reconstruct the traumatic defect.4 Approaches are via open surgery (subciliary or transconjunctival) or endoscopic (transantral), (Table 2). The open transorbital approach is currently regarded as the mainstream method for reduction of blowout fractures of the inferior orbital wall. It is useful for releasing incarcerated soft tissue, as dissecting all soft tissue around the fracture area is necessary.1 Post operative complications include ectropion and unsightly scars, but these rarely occur in the hands of experienced surgeons.5 Endoscopic repair, usually via a transantral approach, can provide surgeons with several advantages over conventional external repair. These include excellent visualization of the medial and inferior walls of the orbit; easy access to maxillary bone (avoiding or minimizing use of intraocular alloplastic implants); virtual elimination of significantly visible facial scarring and eyelid complications; and performing the procedure under local anesthesia, making intra-operative evaluation of ocular movements and diplopia possible.5,6 A transorbital approach has the advantage of releasing incarcerated orbital tissue, while, in contrast, simply lifting the orbital tissue upward in a transantral approach may aggravate the incarceration1 (Table 2). In this patient, the open approach was used because a mid-facial de-gloving was necessary to access other fractures.
The repair of orbital floor fractures involves many techniques, and adequate knowledge and skill is needed to perform any of these techniques employing careful judgment and analysis in formulating a plan that will fit the patient’s needs. As a general principle, the orbital complex is reconstructed by aligning its fractured parts with adjacent stabilized or intact structures.10 Familiarity with the complex shape of the orbital walls is important in repair. In the case of the orbital floor, it gently concaves inferolaterally, turning convex medially to posteriorly, assuming an S-shape configuration. 1,3 The posterior part of the floor is farthest from the inferior orbital rim with the infraorbital nerve coursing thru it makes it vulnerable and weak to the extensive forces absorbed when applied into the orbital area.1,3,10 This explains why posterior orbital floor fractures occur as non-trapdoor types and are difficult to expose. The orbital contents are positioned accurately and precisely into the orbit making any change in volume affect eye function. It is important to assess eye function first as it may give the examiner an idea of the extent of injury to the orbital floor. Indications for repair include diplopia, nonresolving oculocardiac reflex with entrapment (bradycardia, heartblock vomiting, nausea and syncope), fracture involving >50% of the orbital floor, and early enophthalmos or hypoglobus causing facial asymmetry.11 These signs and symptoms elicited during physical examination with documentation of the location of fracture through diagnostic imaging warrant early repair since herniated soft orbital tissue can atrophy within 2-3 weeks post trauma.4
The types of grafts/implants used to span the defects of orbital floor fractures are divided into alloplastic and autogenous implants7 (Table 3). Autogenous grafts include bone, cartilage, and fascia. Alloplastic implants can be divided into nonabsorbable types, such as those made of silicone, polytef, hydroxyapatite, tantalum mesh, or titanium, and absorbable types, including those made of polyglactin or gel film. Repair of the orbital floor defect is mandatory if the defect measures at least 50% of the size of the orbital floor bone. The ideal implant must be nonreactive, provide good structural support, be easily positioned, and be readily available.1,2,3,4 In this case the surgeon utilized conchal cartilage grafts. This graft can be used in repairing defects as large as 2 x 2mm. It advantages over other autogenous grafts include having a shape similar to the orbital floor, ease of harvest, malleability and limited morbidity at the donor site.4
Autogenous tissue grafts, i.e. bone or cartilage, are preferred over alloplastic grafts in the repair of isolated orbital fractures similar to this case.10 Grafts (especially bone) should be secured to avoid displacement or migration and improve graft survival. Complete dissection of the fracture is necessary to identity the intact bone on all side of the fracture since these will be used as alignments when placing the graft. In the case of an orbital floor fracture, the posterior portion of the intact bone will serve as a guide to internal orbital reconstruction. The graft should be placed in inclined position just behind the inferior orbital rim to reach the intact posterior bone.3,10 Placing the graft based on correct anatomic position during reconstruction is of more significance rather than using the globe position as basis in volume restoration.10 It is a must to perform duction tests following graft placements and compare these to baseline duction test prior to surgery.9,10 This will help the surgeon distinguish if the stiff duction test is caused by edema from impingement of the musculofibrous ligament system by the graft material.10
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Acknowledgement
The authors would like to thank Dr Natividad Almazan and Dr. Felix Nolasco for their encouragement and support; and the resident doctors of the Department of ORL-HNS for their help in making this paper.
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Ye, Tianwen, Aimin Chen, Wen Yuan, and Sanhuai Gou. "Management of Grade III Open Dislocated Ankle Fractures." Journal of the American Podiatric Medical Association 101, no. 4 (July 1, 2011): 307–15. http://dx.doi.org/10.7547/1010307.
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Background: Isolated dislocation of the ankle with grade III open fracture has been scarcely reported. These ankle injuries usually involved mortise fractures, complete dislocation of the tibial astragaloid joint, capsuloligamentous structure disruption, and severe soft-tissue damage. There is no well-recognized regimen that would result in desirable outcomes. Methods: Sixteen patients with grade III open dislocated ankle fractures were treated immediately with bioabsorbable implants and an external fixator between January 2003 and June 2007. According to the classification system of Gustilo and Anderson, five patients were grade IIIA, seven were grade IIIB, and four were grade IIIC. Surgical interventions included combined internal fixation with bioabsorbable screws/rods and external fixation. Results: Patients underwent clinical and radiologic examination at an average of 18.1 months after surgery. Outcomes were excellent in seven patients (three IIIA, three IIIB, and one IIIC), good in four (one IIIA, two IIIB, and one IIIC), fair in three (one IIIA, one IIIB, and one IIIC), and poor in two (one IIIB, and one IIIC). In the two patients with poor outcomes, bone defect and cartilage exfoliating in the distal tibia were found during surgery. Painful osteoarthritis in the ankle was discovered 2 years after surgery. Another case had pin tract infections in the external fixator 3 months after surgery. There was no case of late deep infection. Conclusions: It may be a reasonable and desirable option that bioabsorbable implants combined with an external fixator be applied for treatment of severe open dislocated ankle fractures. (J Am Podiatr Med Assoc 101(4): 307–315, 2011)
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??r??en, Asbj??rn, Deryk G. Jones, and Freddie H. Fu. "Arthroscopic Diagnosis and Treatment of Cartilage Injuries." Sports Medicine and Arthroscopy Review 6, no. 1 (January 1998): 31???40. http://dx.doi.org/10.1097/00132585-199801000-00005.
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Zulfahrizzat, S., AS Nadzim, S. Norshaidi, and Rauf A. Abdul. "UNUSUAL TALUS FRACTURE IN CHILDREN." Orthopaedic Journal of Sports Medicine 8, no. 5_suppl5 (May 1, 2020): 2325967120S0003. http://dx.doi.org/10.1177/2325967120s00033.
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Talus fracture are extremely rare in children. The talus is predominantly made up of cartilage with higher elastic resistance than adult bone thus the pediatric talus bone can sustain higher forces before fractures. The prevalence for paediatric trauma in talus fracture is estimated to be five times rarer than for adult trauma . The most common mechanism of injury in talus fractures is axial loading of the talus against the anterior tibia with the foot in dorsiflexion. The talar neck is the most common fracture site, followed by the talar body. Report: A 9-year-old boy was brought to emergency department following a fall from bicycle after his right foot caught in back wheel. He was unable to weightbear on his right foot and his anterior ankle region was swollen, with no open wounds or abrasions. Radiographs of right ankle revealed a fracture at neck of right talus (Hawkins type II ) then proceed with CT scan to characterize the fracture pattern and extent of injury. His fracture was fixed with two headless cannulated screws size 4.0 under I/I guidance. The patient was advised non-weight bearing with below knee cast for 6 weeks. After 2 months the patient was pain free and had resumed all his activities. X-ray after 1 year showed a consolidation of the fracture without evidence of avascular necrosis. The Hawkins classification can be used to describe the different types of fractures of the talar neck and to predict the risk of avascular necrosis. These injuries can be difficult to diagnose with plain radiograph, and further assessment with CT scan or MRI may be necessary. Undisplaced fracture can be managed non-operatively with cast immobilization and displaced fracture can be treated with either closed or open reduction. Complications are still likely to be encountered in the course of talus fractures treatment considering the precarious blood supply to the bone as well as complex ankle and subtalar articulations. According to Smith et al study with 29 subjects , displaced pediatric talus fractures and those associated with high-energy trauma resulted in more complications ; avascular necrosis (7%), arthrosis (17%),delayed union (3%),neuropraxia (7%) and the need for further surgery (10%). [Figure: see text][Figure: see text] Conclusion: Talar fractures in the pediatric age group are very rare. A minimal or undisplaced fracture of talus is less likely to undergo avascular necrosis than a displaced fracture but even with optimal treatment, avascular necrosis may still occur. It is of prime significance that these fractures should be diagnosed well in time to avert complications. Therefore an appropriate length of follow-up is required. References: Vivek D , Jairam DJ , Paediatric Talus Fracture :Volume 5 Issue 8, International Journal of Science and Research August 2016 PG 1040-1041
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Spindler, Kurt P., Laura J. Huston, Kevin M. Chagin, Michael W. Kattan, Emily K. Reinke, Annunziato Amendola, Jack T. Andrish, et al. "Ten-Year Outcomes and Risk Factors After Anterior Cruciate Ligament Reconstruction: A MOON Longitudinal Prospective Cohort Study." American Journal of Sports Medicine 46, no. 4 (March 2018): 815–25. http://dx.doi.org/10.1177/0363546517749850.
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Background: The long-term prognosis and risk factors for quality of life and disability after anterior cruciate ligament (ACL) reconstruction remain unknown. Hypothesis/Purpose: Our objective was to identify patient-reported outcomes and patient-specific risk factors from a large prospective cohort at a minimum 10-year follow-up after ACL reconstruction. We hypothesized that meniscus and articular cartilage injuries, revision ACL reconstruction, subsequent knee surgery, and certain demographic characteristics would be significant risk factors for inferior outcomes at 10 years. Study Design: Therapeutic study; Level of evidence, 2. Methods: Unilateral ACL reconstruction procedures were identified and prospectively enrolled between 2002 and 2004 from 7 sites in the Multicenter Orthopaedic Outcomes Network (MOON). Patients preoperatively completed a series of validated outcome instruments, including the International Knee Documentation Committee (IKDC), Knee injury and Osteoarthritis Outcome Score (KOOS), and Marx activity rating scale. At the time of surgery, physicians documented all intra-articular abnormalities, treatment, and surgical techniques utilized. Patients were followed at 2, 6, and 10 years postoperatively and asked to complete the same outcome instruments that they completed at baseline. The incidence and details of any subsequent knee surgeries were also obtained. Multivariable regression analysis was used to identify significant predictors of the outcome. Results: A total of 1592 patients were enrolled (57% male; median age, 24 years). Ten-year follow-up was obtained on 83% (n = 1320) of the cohort. Both IKDC and KOOS scores significantly improved at 2 years and were maintained at 6 and 10 years. Conversely, Marx scores dropped markedly over time, from a median score of 12 points at baseline to 9 points at 2 years, 7 points at 6 years, and 6 points at 10 years. The patient-specific risk factors for inferior 10-year outcomes were lower baseline scores; higher body mass index; being a smoker at baseline; having a medial or lateral meniscus procedure performed before index ACL reconstruction; undergoing revision ACL reconstruction; undergoing lateral meniscectomy; grade 3 to 4 articular cartilage lesions in the medial, lateral, or patellofemoral compartments; and undergoing any subsequent ipsilateral knee surgery after index ACL reconstruction. Conclusion: Patients were able to perform sports-related functions and maintain a relatively high knee-related quality of life 10 years after ACL reconstruction, although activity levels significantly declined over time. Multivariable analysis identified several key modifiable risk factors that significantly influence the outcome.
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Lindahl, Anders. "From gristle to chondrocyte transplantation: treatment of cartilage injuries." Philosophical Transactions of the Royal Society B: Biological Sciences 370, no. 1680 (October 19, 2015): 20140369. http://dx.doi.org/10.1098/rstb.2014.0369.
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This review addresses the progress in cartilage repair technology over the decades with an emphasis on cartilage regeneration with cell therapy. The most abundant cartilage is the hyaline cartilage that covers the surface of our joints and, due to avascularity, this tissue is unable to repair itself. The cartilage degeneration seen in osteoarthritis causes patient suffering and is a huge burden to society. The surgical approach to cartilage repair was non-existing until the 1950s when new surgical techniques emerged. The use of cultured cells for cell therapy started as experimental studies in the 1970s that developed over the years to a clinical application in 1994 with the introduction of the autologous chondrocyte transplantation technique (ACT). The technology is now spread worldwide and has been further refined by combining arthroscopic techniques with cells cultured on matrix (MACI technology). The non-regenerating hypothesis of cartilage has been revisited and we are now able to demonstrate cell divisions and presence of stem-cell niches in the joint. Furthermore, cartilage derived from human embryonic stem cells and induced pluripotent stem cells could be the base for new broader cell treatments for cartilage injuries and the future technology base for prevention and cure of osteoarthritis.
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Mendias, Christopher L., Elizabeth R. Sibilsky Enselman, Adam M. Olszewski, Jonathan P. Gumucio, Daniel L. Edon, Maxwell A. Konnaris, James E. Carpenter, et al. "The Use of Recombinant Human Growth Hormone to Protect Against Muscle Weakness in Patients Undergoing Anterior Cruciate Ligament Reconstruction: A Pilot, Randomized Placebo-Controlled Trial." American Journal of Sports Medicine 48, no. 8 (May 26, 2020): 1916–28. http://dx.doi.org/10.1177/0363546520920591.
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Background: Anterior cruciate ligament (ACL) tears are common knee injuries. Despite undergoing extensive rehabilitation after ACL reconstruction (ACLR), many patients have persistent quadriceps muscle weakness that limits their successful return to play and are also at an increased risk of developing knee osteoarthritis (OA). Human growth hormone (HGH) has been shown to prevent muscle atrophy and weakness in various models of disuse and disease but has not been evaluated in patients undergoing ACLR. Hypothesis: Compared with placebo treatment, a 6-week perioperative treatment course of HGH would protect against muscle atrophy and weakness in patients undergoing ACLR. Study Design: Randomized controlled trial; Level of evidence, 2. Methods: A total of 19 male patients (aged 18-35 years) scheduled to undergo ACLR were randomly assigned to the placebo (n = 9) or HGH (n = 10) group. Patients began placebo or HGH treatment twice daily 1 week before surgery and continued through 5 weeks after surgery. Knee muscle strength and volume, patient-reported outcome scores, and circulating biomarkers were measured at several time points through 6 months after surgery. Mixed-effects models were used to evaluate differences between treatment groups and time points, and as this was a pilot study, significance was set at P < .10. The Cohen d was calculated to determine the effect size. Results: HGH was well-tolerated, and no differences in adverse events between the groups were observed. The HGH group had a 2.1-fold increase in circulating insulin-like growth factor 1 over the course of the treatment period ( P < .05; d = 2.93). The primary outcome measure was knee extension strength, and HGH treatment increased normalized peak isokinetic knee extension torque by 29% compared with the placebo group ( P = .05; d = 0.80). Matrix metalloproteinase–3 (MMP3), which was used as an indirect biomarker of cartilage degradation, was 36% lower in the HGH group ( P = .05; d = –1.34). HGH did not appear to be associated with changes in muscle volume or patient-reported outcome scores. Conclusion: HGH improved quadriceps strength and reduced MMP3 levels in patients undergoing ACLR. On the basis of this pilot study, further trials to more comprehensively evaluate the ability of HGH to improve muscle function and potentially protect against OA in patients undergoing ACLR are warranted. Registration: NCT02420353 ( ClinicalTrials.gov identifier)
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Kaufman, Howard H. "Treatment of head injuries in the American Civil War." Journal of Neurosurgery 78, no. 5 (May 1993): 838–45. http://dx.doi.org/10.3171/jns.1993.78.5.0838.
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✓ At the time of the American Civil War (1861–1865), a great deal was known about closed head injury and gunshot wounds to the head. Compression was differentiated from concussion, but localization of lesions was not precise. Ether and especially chloroform were used to provide anesthesia. Failure to understand how to prevent infection discouraged physicians from aggressive surgery. Manuals written to educate inexperienced doctors at the onset of the war provide an overview of the advice given by senior surgeons. The Union experiences in the treatment of head injury in the Civil War were discussed in the three surgical volumes of The Medical and Surgical History of the War of the Rebellion. Wounds were divided into incised and puncture wounds, blunt injuries, and gunshot wounds, which were analyzed separately. Because the patients were not stratified by severity of injury and because there was no neuroimaging, it is difficult to understand the clinical problems and the effectiveness of surgery. Almost immediately after the war, increased knowledge about cerebral localization and the development of antisepsis (and then asepsis) permitted the development of modern neurosurgery.
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Newlands, Shawn D., Sreedhar Samudrala, and W. Kevin Katzenmeyer. "Surgical Treatment of Gunshot Injuries to the Mandible." Otolaryngology–Head and Neck Surgery 129, no. 3 (September 2003): 239–44. http://dx.doi.org/10.1016/s0194-5998(03)00481-9.
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OBJECTIVES: Our goal was to review and identify risk factors for complications from treatment of mandible fractures due to gunshot wounds. STUDY DESIGN AND SETTING: We conducted a retrospective review of treatment outcomes in 90 patients with gunshot wounds to the mandible treated over a 10-year period at 2 tertiary care centers. RESULTS: Our series of 90 patients with mandibular injuries due to gunshot wounds included 68 patients who underwent surgical procedures on the mandible. There were 14 complications in this group. Complications were more common in patients whose mandibles were rigidly fixated; however, these patients' injuries were more severe. Complications were significantly increased in patients who lost a segment of mandible in the injury. CONCLUSIONS: Complications were related to severity of injury and independent of treatment modality. SIGNIFICANCE: The complication rate for patients with gunshot injuries can be very high, particularly if bone is missing. Stabilization of remaining mandibular segments with potentially multiple subsequent reconstructive procedures is often required to restore mandibular continuity in these patients.
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Chierice, João, Geraldo Figueiredo, Moyses Lima-Filho, Igo Lago, Rodrigo Costa, and José Marin-Neto. "Hybrid interventional and surgical treatment of complex traumatic cardiac dagger wounds." Journal of Transcatheter Interventions 29 (July 1, 2021): 1–5. http://dx.doi.org/10.31160/jotci202129a20210008.
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Penetrating injuries to the heart are usually devastating and few patients survive the initial trauma. The most frequent penetrating injuries are caused by projectile injuries and less commonly by melee weapons. Most of these injuries involve chamber free walls and a small percentage can affect the interventricular septum. We report a case in which an emergency surgical procedure was successful in controlling cardiac tamponade, and repairing a right ventricular laceration caused by multiple stab wounds. Subsequently, a successful interventional occlusion of a large interventricular septal defect, associated with significantly augmented pulmonary flow was performed.
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Hamby, Timothy S., Scott D. Gillogly, and Lars Peterson. "Treatment of patellofemoralarticular cartilage injuries with autologous chondrocyte implantation." Operative Techniques in Sports Medicine 10, no. 3 (July 2002): 129–35. http://dx.doi.org/10.1053/otsm.2002.36439.
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Lewis, Paul B., L. Pearce McCarty, Richard W. Kang, and Brian J. Cole. "Basic Science and Treatment Options for Articular Cartilage Injuries." Journal of Orthopaedic & Sports Physical Therapy 36, no. 10 (October 2006): 717–27. http://dx.doi.org/10.2519/jospt.2006.2175.
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McCarthy, Meagan M., and Eric McCarty. "Treatment of Articular Cartilage Injuries in the Glenohumeral Joint." Sports Medicine and Arthroscopy Review 26, no. 3 (September 2018): 120–28. http://dx.doi.org/10.1097/jsa.0000000000000201.
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Lepp??niemi, Ari K., and Norman M. Rich. "Treatment of Vascular Injuries in War Wounds of the Extremities." Techniques in Orthopaedics 10, no. 3 (1995): 265–71. http://dx.doi.org/10.1097/00013611-199501030-00019.
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Amarantov, D. G., M. F. Zarivchatskii, A. A. Kholodar, O. S. Gudkov, and E. V. Kolyshova. "Modern approaches to surgical treatment of thoraco-abdominal wounds." VESTNIK KHIRURGII IMENI I.I.GREKOVA 177, no. 5 (November 23, 2018): 100–104. http://dx.doi.org/10.24884/0042-4625-2018-177-5-100-104.
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Thoraco-abdominal wounds are the most severe injuries of the chest and abdomen, with mortality reaching 13–20 %. The main focus of treatment of such patients is surgical correction of the injuries. Wide range of classical and minimally invasive interventions is used for treatment of victims . The paper presents the range of views of modern researchers on the indications for laparocentesis, drainage of the pleural cavity, thoracoscopy and laparoscopy, thoracotomy and laparotomy in this pathology. The opinions of various researchers on the optimal combination of interventions and tactics of surgical treatment of victims with thoraco-abdominal wounds are presented. It is necessary to continue the search for optimal combinations of classical and minimally invasive interventions in relation to a variety of clinic situations that arise in the treatment of patients with thoraco-abdominal wounds.
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Hacken, Brittney A., Matthew D. LaPrade, Michael J. Stuart, Daniel B. F. Saris, Christopher L. Camp, and Aaron J. Krych. "Small Cartilage Defect Management." Journal of Knee Surgery 33, no. 12 (September 8, 2020): 1180–86. http://dx.doi.org/10.1055/s-0040-1716359.
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AbstractCartilage defects in the knee are common resulting in significant pain and morbidity over time. These defects can arise in isolation or concurrently with other associated injuries to the knee. The treatment of small (< 2–3 cm2) cartilage deficiencies has changed as our basic science knowledge of tissue healing has improved. Advancements have led to the development of new and more effective treatment modalities. It is important to address any associated knee injuries and limb malalignment. Surgical options are considered when nonoperative treatment fails. The specific procedure depends on individual patient characteristics, lesion size, and location. Debridement/chondroplasty, microfracture, marrow stimulation plus techniques, fixation of unstable osteochondral fragments, osteochondral autograft transfer, and osteochondral allograft transplantation, all have roles in the treatment of small cartilage defects.
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Trukhan, A. P., D. V. Alkhovik, I. G. Kosinsky, V. A. Koryachkin, V. A. Porkhanov, and I. Yu Zherkal. "REPUBLICAN CENTER FOR TREATMENT OF GUNSHOT WOUNDS AND MINE-EXPLOSIVE INJURIES: 3 YEARS OF EXPERIENCE AND TRENDS OF DEVELOPMENT." Novosti Khirurgii 29, no. 2 (April 21, 2021): 207–12. http://dx.doi.org/10.18484/2305-0047.2021.2.207.
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Objective. To evaluate the results of organizational measures for improving the efficiency of the Republican Center for the treatment of gunshot wounds and mine-explosive injuries. Methods. The study is based on an analysis of the work of the Republican Center for the treatment of gunshot wounds and mine-explosive injuries and includes patients (n=54) who were treated from November 1, 2016 to October 31, 2019. Gunshot wounds were detected in 42 patients (77.8%). Explosive trauma was detected in 12 patients (22.2%). The most common causes of injuries were personal carelessness (20 cases (37.0%)), carelessness of others (16 cases (29.6%)), suicidal attempts (9 cases (16.6%)). In accordance with the purpose of the survey, three equal time intervals (three periods) each being equal to one year were studied. The following indicators were analyzed: the number of patients, the time from the moment of injuring to hospitalization, the type of patient’s transportation, the quality of surgical care at the hospitalization stages. Results. Implementation of the proposed organizational measures allowed increasing the number of patients hospitalized into the Republican Center for the treatment of gunshot wounds and mine-explosive injuries during the third year of work by 66.7% and 78.6%, respectively, compared with the previous time intervals. The frequency of hospitalization of patients within 24 hours after receiving an injury increased from 66.7% to 72.7%, and among patients who are not military personnel - from 45.5% to 69.2%. The proportion of errors in the treatment of patients with gunshot wounds and explosive injuries decreased by 34.0%. Conclusion. The proposed organizational measures allowed increasing the efficiency of the Republican Center for the treatment of gunshot wounds and mine-explosive injuries. In the future, it is advisable to continue close cooperation with healthcare organizations and to improve the regulatory framework for the treatment of gunshot wounds of various localization. What this paper adds The paper presents the results of the analysis of three-year work of the RepublicanCenter for the treatment of gunshot wounds and mine-explosive injuries.Realization of the proposed organizational measures allowed increasing the number of hospitalized patients, shortening the period from injury to hospitalization, and reducing the number of errors in patient care.
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Merkulov, V. N., E. A. Karam, O. G. Sokolov, A. G. El'tsin, V. N. Merkulov, E. A. Каram, O. G. Sokolov, and A. G. El'tsin. "Arthroscopic Diagnosis and Treatment of Knee Articular Cartilage Injuries in Children." N.N. Priorov Journal of Traumatology and Orthopedics 10, no. 2 (June 15, 2003): 74–78. http://dx.doi.org/10.17816/vto200310274-78.
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Experience in knee arthroscopy in children with acute knee trauma and sequelae of knee injuries is presented. There were 417 patients, aged 4-18, who were under treatment at the clinic in the period from 1994 to 2002. One hundred forty four patients (34.5%) had injury of articular cartilage. In 12 cases diagnostic and in 132 cases diagnostic and curative arthroscopy was performed. Evident advantages of arthroscopy in diagnosis of intraarticular knee structures injuries, especially cartilagenous tissue were emphasized. Protocol of diagnostic examination including clinical, roentgenologic, ultrasonographic methods as well as CT and MRT (as indicated) is suggested. Indications to knee arthroscopy in children and adolescents are determined. Clinical-arthroscopic classification of knee articular cartilage injuries is given. Due to exact diagnosis and adequate curative tactics total restoration of knee function was achieved in 75% of patients with articular cartilage injuries.
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Scandurra, Graziella, Emanuele Cardillo, Gino Giusi, Carmine Ciofi, Eduardo Alonso, and Romano Giannetti. "Portable Knee Health Monitoring System by Impedance Spectroscopy Based on Audio-Board." Electronics 10, no. 4 (February 13, 2021): 460. http://dx.doi.org/10.3390/electronics10040460.
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Knee injuries are among the most common health problems in the world. They not only affect people who practice sports, but also those who lead a rather sedentary life. Factors such as age, weight, working and leisure activities can affect the health of the knees, causing disorders such as inflammation, edema, deterioration of cartilage and osteoarthritis. Although for the diagnosis and treatment of the various pathologies it is always advisable to contact orthopedists and specialized structures, it would often be useful to monitor the state of health of the knees in order to evaluate the healing (or worsening) process and the effects of sport/motion activities or rehabilitation. In this perspective, a portable knee health monitoring system was developed to be used at home or in gyms and sports environments in general. Besides requiring a simple custom front end, the system relies on a PC audio board capable of a sampling rate of 192 kHz to perform bioimpedance measurements at frequencies in excess of 50 kHz. A simple numerical calibration procedure allows to obtain high accuracy while maintaining low hardware complexity. The software developed for the operation of the system is freely available to any researcher willing to experiment with the bioimpedance measurement approach we propose, ensuring the conditions of portability and low complexity. Primary (intracellular and extracellular resistances and cell membrane capacitance) and secondary (real and imaginary parts of the total impedance) bioimpedance parameters can be obtained and analyzed through direct measurements with reference to an equivalent circuit model. The functionality of the system has been tested on nine subjects with different well-known health conditions, providing encouraging results in terms of the ability to correlate bioimpedance measurements to the health status of the knees. If proper clinical trials were to confirm our preliminary results, a system such as the one we propose could be used for fast and frequent monitoring of knee joints, thus possibly reducing the frequency at which complex and expensive medical exams, sometimes involving long waiting lists, must be performed.
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Alford, J. Winslow, and Brian J. Cole. "Cartilage Restoration, Part 1." American Journal of Sports Medicine 33, no. 2 (February 2005): 295–306. http://dx.doi.org/10.1177/0363546504273510.
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Surgical procedures designed to treat focal chondral lesions are evolving and are supported by basic science principles of cartilage physiology and known responses to injury. Selecting the proper treatment algorithm for a particular patient depends on careful patient evaluation, including the recognition of comorbidities such as ligamentous instability, deficient menisci, or malalignment of the mechanical limb axis or extensor mechanism. These comorbidities may need to be treated in conjunction with symptomatic chondral injuries to provide a mutually beneficial effect. A central tenet of cartilage restoration is to leave future treatment options available should they become necessary. In this article (part 1), the authors review the basic science of chondral injuries, the historical perspective of the available surgical options, and present guidelines for patient evaluation and treatment.
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Jalili, Reza, Myriam Maude Verly, Breshell Russ, Ruhangiz T. Kilani, and Aziz Ghahary. "645 Topical Application of a Novel Powdered Scaffold for Rapid Treatment of Skin Injuries." Journal of Burn Care & Research 41, Supplement_1 (March 2020): S168—S169. http://dx.doi.org/10.1093/jbcr/iraa024.265.
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Abstract Introduction In large skin injuries, lack of matrix deposition impedes timely healing process. The longer a wound remains open, the greater is the risk of infection, non-healing, and other complications. It is therefore crucial to find effective means to promote rapid closure of skin defects. Our group has previously developed a liquid in situ-forming nutritional scaffold, known as MeshFill (MF). MF has been previously proven to be very effective in accelerating the wound repair process, notably that of complex wounds. However, MF is limited in its application to deep and tunnelling wounds, and requires reconstitution with a solvent as well as maintenance at cold temperature until application. To address these limitations, our group has developed a powdered form of MF for rapid topical application on superficial skin injuries such as dehisced surgical wounds and burn injuries. Methods Our goal was to investigate whether a powdered form of MF could be directly applied onto the wounds to accelerate healing. Ideally, powdered MF would absorb the moisture within the wound environment and reconstitute into the gel form in situ. We examined the efficacy of powder MF (PMF) compared to reconstituted gel MF (GMF) and to a standard dressing protocol. To do so, splinted full thickness wounds were generated on the back of mice and treated with either PMF or GMF or were bandaged with no treatment (NT). The healing process was monitored until wounds were fully closed. Clinical wound measurements and histological assessments were performed to compare different treatment regimens. Results Application of both PMF and GMF accelerated wound epithelialization at days 7 and 14, compared to NT, and had faster wound closure times. On average, the PMF treatments healed 17% faster than the NT control, and the GMF treatments healed 21% faster than the NT control. No significant difference between PMF and GMF was found for any outcomes. Additionally, our results suggest that epidermis formation was more effective in P and MF conditions compared to NT. Conclusions These findings suggest that topical application of a powdered form of MeshFill is as effective as standard reconstituted MeshFill gel in accelerating the healing process of skin injuries. Applicability of Research to Practice Topical application of a powdered scaffold may be a very convenient and practical method for rapid treatment of large superficial wounds such as dehisced surgical wounds, burn injuries, and filling gaps in meshed skin grafts.
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Özmeriç, Ahmet. "Treatment for cartilage injuries of the knee with a new treatment algorithm." World Journal of Orthopedics 5, no. 5 (2014): 677. http://dx.doi.org/10.5312/wjo.v5.i5.677.
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Sizyi, M. Yu. "Septic complications in patients with neck wounds." Експериментальна і клінічна медицина 84, no. 3 (August 21, 2020): 64–66. http://dx.doi.org/10.35339/ekm.2019.84.03.10.
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Nowadays, we have been a steady increase in injuries as the social conditions of life and have changed. Statistically found that 54.0 % of people of car accidents have injuries to the head and neck. According to the literature, mortality in patients with neck injury which is complicating by pyoinflammatory persists up to 30.0-76.0 %. The management of neck trauma can be challenging and sometimes overwhelming, as this anatomical region contains many vital structures. These structures may pose a diagnostic and therapeutic dilemma. Our research based on the results of diagnosis and treatment of 124 patients with a purulent mediastinitis, complicating traumatic injuries of the neck organs. Among these men – 92 (74.2 %), women – 32 (25.8 %). The results of treatment depend on timely diagnosis, hospitalization in a specialized compartment and conducting active surgical tactics
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Stekolnikov, A. A., and M. A. Ladanova. "TECHNOLOGICAL INJURIES IN INDUSTRIAL PIG FARMING." International bulletin of Veterinary Medicine 1 (2020): 135–39. http://dx.doi.org/10.17238/issn2072-2419.2020.1.135.
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Industrial injuries in pig farms of closed type are a very common pathology. Howev-er, nowadays, injury prevention and treat-ment of sick animals in the conditions of industrial pig breeding complex do not bring good results and require improvements. Ac-cording to the literature, there is no infor-mation about the results of the use of oint-ments and immuno- stimulators in the treat-ment of pigs with bitten wounds of the ears, tails and other parts of the body. In this re-gard, we have set a goal to develop therapeu-tic measures for injuries of piglets in a pig breeding complex of a closed type. We ana-lyzed the prevalence of industrial injuries in pigs. During the clinical examination, we studied the specific structures of injuries. The main cause of pigs injuries in industrial farming is cannibalism. In 28 days, 60% of pigs in the second experimental group, showed complete cicatrization of the wound, and 40% of animals showed this process regenerated on 85-95%, meanwhile 2 days they also had complete scarring of the wound. In 28 days, 50% of pigs of the third experimental group had a complete cicatriza-tion of the wound, and for 50% were ob-served scarring of the wound by 75-85%, and only after 4 days they demonstrated the complete scaring of the defect. For the treatment of bitten wounds as a result of developing cannibalism, it is recommended, to use local treatment of wounds with chlor-hexidine solution and argosulfan ointment daily 2 times a day and also to use the im-munostimulator “Ferrovir” in a dose of 1.0 ml/m2 per week. Such scheme of treatment of bitten wounds gives the best therapeutic effect.
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Mitkovic, Milorad, Marko Bumbasirevic, Sasa Milenkovic, Ivan Micic, Predrag Stojiljkovic, Igor Kostic, Sasa Karalejic, et al. "Nature and results of treatment of war wounds caused by cluster bombs." Acta chirurgica Iugoslavica 60, no. 2 (2013): 41–47. http://dx.doi.org/10.2298/aci1302041m.
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The aim of this study is to describe the nature of war wounds with fracture caused by cluster bombs and to suggest treatment options for such injuries. The nature of wounds caused by cluster bombs differs from those caused by conventional arms (they are more severe). The sides of the wounds are represented by conquasated soft tissues (such as fat and muscle) with thick dead tissues, ordinarily with a thickness of 0.5-4.5 cm. Another main characteristic of such injuries is the high percentage of amputations needed due to the high rate of neurovascular damage. This paper investigates the cases of 81 patients who sustained a total of 99 war wounds with fractures. The average age of the patients was 32.7 years while the youngest was 20 and the oldest, 77. According to The International Committee of the Red Cross (ICRC) classification of war wounds, 14 patients had grade I injuries, 48 patients grade II, and 29 patients, grade III. Mitkovic external fixation system, known also as the "War Fixator" was used for all fractures fixation. One protocol, which was a modification of the ICRC?s protocol adapted to our specific conditions, was used throughout the study. For solving soft tissue defects, a rotator fasciocutan flap was the most frequently used. For solving of bones defect Mitkovic reconstructive external fixation device was used. All fractures we treated healed. We concluded that shortening the procedural time and being a very simple, immediate using of Mitkovic versatile external fixator ("War Fixator") is , leads to desirable results.
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Draper, David O., Kenneth L. Knight, and Justin H. Rigby. "High-Volt Pulsed Current: Treatment of Skin Wounds and Musculoskeletal Injuries." International Journal of Athletic Therapy and Training 17, no. 4 (July 2012): 32–34. http://dx.doi.org/10.1123/ijatt.17.4.32.
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Kornilova, A. F., and S. M. Makarova. "Prevention and modern methods of treatment of perforated eye wounds." Kazan medical journal 66, no. 2 (April 15, 1985): 94–98. http://dx.doi.org/10.17816/kazmj60730.
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Analysis of the causes of injuries at one of the factories in Saratov showed that in 92% of cases they depend on unclear instructions on safe work at the workplace, insufficient provision of work glasses of rational design.
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Tsymbaliuk, Vitalii I., Sergii S. Strafun, Ihor B. Tretyak, Iaroslav V. Tsymbaliuk, Alexander A. Gatskiy, Yuliia V. Tsymbaliuk, and Mykhailo M. Tatarchuk. "SURGICAL TREATMENT OF PERIPHERAL NERVES COMBAT WOUNDS OF THE EXTREMITIES." Wiadomości Lekarskie 74, no. 3 (2021): 619–24. http://dx.doi.org/10.36740/wlek202103210.
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The aim: Improving the effectiveness of patients' treatment with combat injuries of the peripheral nervous system, which consists in the application and development of new methods of reconstructive interventions, optimizing a set of therapeutic and diagnostic measures for the most effective management of this category of patients with peripheral nerve injury. Materials and methods: The research is based on the results of surgical treatment of 138 patients with combat injuries of peripheral nerves for the period from 2014 to 2020. The mean age was 33.5 ± 2.1 years. Patients were treated for 1 to 11 months after injury (median – 8 months). Damage to the sciatic nerve was observed in 26.1%, ulnar – in 20.3%, median – in 18.8%, radial – in 15.9%, tibial – in 10.9%, common peroneal nerve – in 8% of cases. Results: It was shown that in all patients was significantly improved the recovery of all nerves. In the period from 9 to 12 months, the degree of recovery of motor function to M0-M2 was observed in 40.6%, to M3 – in 35.5%, to M4 – in 16.7%, to M5 – in 7,2%. The degree of recovery of sensitivity to S0-S2 was observed in 36.2%, to S3 – in 42.8%, to S4 – in 17.4%, to S5 – in 3.6%. Regression of pain syndrome after surgery was observed in 81.2% of patients. Conclusions: The results of surgical treatment of peripheral nerves gunshot injury are generally worse than other types of nerve injuries. The best results of surgical treatment of combat trauma of peripheral nerves are obtained in patients with sciatic nerve damage.