Дисертації з теми "Fractures Surgery"
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Mdlalose, Lindubuhle. "Immediate versus delayed surgical management of septic mandibular fractures." Thesis, University of the Western Cape, 2015. http://hdl.handle.net/11394/4611.
Повний текст джерелаAim: The aim of the study was to compare immediate and delayed surgical management of septic mandibular fractures. Introduction: Infected mandible fractures can be treated via diverse protocols. Two recognized protocols are the so-called delayed approached and the immediate approach. In the delayed approach, sepsis is resolved first, followed by surgery. With the immediate approach, the sepsis is first drained, followed by open reduction and internal fixation of the jaw fracture in one continuous surgical procedure. Material and methods: 20 clinical cases where included in the study. Patients were randomly selected and assigned to the two treatment protocol groups. Pain, vital signs, fracture union, fracture stability, surgical time, hospital time, follow-up visits and patients’ demographics were recorded. Results: No statistically significant findings were made in the analysis of the demographic data and clinical parameters relating to the sepsis. The only significant data were related to the surgical time and hospital time. It was found that the advantages of the immediate approach versus the delayed approach related only to shorter surgical time and less days spent in hospital for the immediate approach. Conclusion: Septic mandibular fractures can be managed either by an immediate or a delayed approach. The immediate surgical approach seems to have an advantage over the delayed approach regarding the surgical time and hospital admission days.
Nowak, Jan. "Clavicular Fractures, Epidemiology, Union, Malunion, Nonunion." Doctoral thesis, Uppsala University, Orthopaedics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2598.
Повний текст джерелаDuring a three-year period (1989-91), all patients living in the county of Uppsala, Sweden, with a radiographically verified fracture of the clavicle were prospectively, consecutively followed (n=245).
The epidemiological study (I) was restricted to the two first years with 187 fractures in185 patients. The short term study (II) with 6 months follow-up included 222 patients. The long term study (III) with 10 years follow-up included 208 patients. The malunion study (IV) included eight patients and the nonunion study (V) 24 patients all of whom were consecutively operated between 1988-2000.
Displacement, especially with no bony contact in the initial radiographs, was a statistically significant risk factor for sequelae.
Comminute fractures, especially if including transversally placed fragments, were associated with a significantly increased risk of remaining symptoms. An increasing number of fragments was also associated with an increased risk of sequelae.
Patients with remainig symptoms after 6 months were on average older at the time of injury as compared to patients without remaining symptoms. Advancing age was also a significant risk factor for sequelae – specifically pain at rest – still after 10 years.
There was no difference between gender with respect to the risk of sequelae, except for nonunion.
Fracture location did not predict outcome, except for more cosmetic defects (middle part).
Shortening defined as overlapping at the fracture site was a significant risk factor for cosmetic defects after 10 years.
Patients who experience pain at rest and/or cosmetic defects more than twelve weeks after the fracture have a higher risk for sequelae.
The radiographic examination should always consist of two projections: the AP (0°) view and the 45° tilted view. Transversally placed fragments are not seen in the 0° view.
Removal of excessive callus in patients with persistent symptoms even several years after the fracture showed a good outcome. One does not have to stabilize the clavicle when excising the hypertrophic callus.
Symptomatic clavicular nonunions should be treated with surgery. Reconstruction plate combined with cancellous bone gives a faster and more reliable healing rate than external fixation.
Roussot, Mark. "Amputation rate following tibia fractures with associated popliteal artery injuries." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25507.
Повний текст джерелаNussbaum, Marcy Lauren. "Meta-Analysis of Open vs Closed Surgery of Mandibular Condyle Fractures." VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd/1397.
Повний текст джерелаKauta, Ntambue. "The management of fragility fractures of the hip: a quality assessment project." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25067.
Повний текст джерелаDavis, Johan H. "Thoracolumbar injuries : short segment posterior instrumentation as standalone treatment - thoracolumbar fractures." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5351.
Повний текст джерелаObjective: This research paper reports on the radiographic outcome of unstable thoracolumbar injuries with short segment posterior instrumentation as standalone treatment; in order to review rate of instrumentation failure and identify possible contributing factors. Background: Short segment posterior instrumentation is the treatment method of choice for unstable thoracolumbar injuries in the Acute Spinal Cord Injury Unit (Groote Schuur Hospital). It is considered adequate treatment in fracture cases with an intact posterior longitudinal ligament, and Gaines score below 7 (Parker JW 2000); as well as fracture dislocations, and seatbelt-type injuries (without loss of bone column - bearing integrity). The available body of literature often states instrumentation failure rates of up to 50% (Alanay A 2001, Tezeren G 2005). The same high level of catastrophic hardware failure is not evident in the unit researched. Methods: Sixty-five consecutive patients undergoing the aforementioned surgery were studied. Patients were divided into two main cohorts, namely the “Fracture group” (n=40) consisting of unstable burst fractures and unstable compression fractures; and the “Dislocation group” (n=25) consisting of fracture dislocations and seatbelt-type injuries. The groups reflect similar goals in surgical treatment for the grouped injuries, with reduction in loss of sagittal profile and maintenance thereof being the main aim in the fracture group, appropriately treated with Schantz pin constructs; and maintenance in position only, the goal in the dislocation group, managed with pedicle screw constructs. Data was reviewed in terms of complications, correction of deformity, and subsequent loss of correction with associated instrumentation failure. Secondly, factors influencing the aforementioned were sought, and stratified in terms of relevance. Results: Average follow up was 278 days for the fracture group and 177 days for the dislocation group (all patients included were deemed to have achieved radiological fusion – if fusion technique was employed). There was an average correction in kyphotic deformity of 10.25 degrees. Subsequent loss in sagittal profile averaged 2 degrees (injured level) and 5 degrees (thoracolumbar region) in the combined fracture and dislocation group. The only factor showing a superior trend in loss of reduction achieved was the absence of bone graft (when non-fusion technique was employed). Instrumentation complications occurred in two cases (bent connection rods in a Schantz pin construct with exaggerated loss in regional sagittal profile, and bent Schantz pins). These complications represent a 3.07% hardware failure in total. None of the failures were considered catastrophic. Conclusion: Short segment posterior instrumentation is a safe and effective option in the treatment of unstable thoracolumbar fractures as a standalone measure.
Boudissa, Mehdi. "Réduction virtuelle des fractures complexes du bassin à l'aide du premier simulateur biomécanique patient-spécifique Computer-assisted surgery in acetabular fractures: Virtual reduction of acetabular fracture using the first patient-specific biomechanical model simulator Computer Assisted Surgery in Preoperative Planning of Acetabular Fracture Surgery: State of the Art." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAS038.
Повний текст джерелаL’objectif de cette thèse est de développer et valider une nouvelle méthode de planification pré-opératoire en chirurgie traumatique de l’acetabulum reposant sur un modèle biomécanique patient-spécifique. La première partie de ce travail a consisté en l’élaboration et l’amélioration progressive de ce nouvel outil de planification. La première étape était de générer des modèles tri-dimensionnels de plusieurs fractures acétabulaires à l’aide d’une méthode de segmentation semi-automatique. Dans le même temps, nous avons démontré que les fragments osseux segmentés pouvaient être utile pour classer correctement les fractures acétabulaires par des internes non expérimentés. La seconde étape était de générer un modèle biomécanique patient-spécifique, le plus simplement possible pour pouvoir être compatible avec une pratique clinique régulière. Une revue de la littérature à propos des différentes méthodes de planifications péri-opératoire en traumatologie de l’acetabulum a été réalisée afin d’identifier qu’un nouveau paradigme était nécessaire du fait des limites des méthodes existantes. Une fois les objectifs d’une modélisation biomécanique patient-spécifique définis, une revue de la littérature des différents modèles biomécanique de la hanche a été réalisée pour définir les propriétés biomécaniques des différents éléments à modéliser. Un compromis entre simplicité et comportement réaliste du modèle a été trouvé pour générer un modèle biomécanique patient-spécifique, dans un temps limité, compatible avec une utilisation courante en pratique clinique. Des études cliniques portant sur 14 cas de fractures acétabulaires opérées, puis 29 et finalement 39 cas ont été réalisées pour valider rétrospectivement les simulations biomécaniques. Les résultats montraient une parfaite adéquation avec la réalité. Seuls des logiciels en libre accès, avec leurs faiblesses, étaient utilisés car la fiabilité et la validité de la simulation étaient nécessaires avant d’envisager plus d’investissements. La preuve de concept était donnée. Enfin, une étude clinique prospective a démontré l’efficacité de la simulation biomécanique patient-spécifique et sa faisabilité en pratique clinique quotidienne. Ce travail ouvre la porte à de nouvelles approches en matière de planification chirurgicale et de modélisation patient-spécifique
Koller, Ian M. "Locking plates for distal femur fractures does an increased working length improve healing?" Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/2844.
Повний текст джерелаIncludes bibliographical references.
Distal femur locking plates have become a very popular means of internal fixation because of their ability to provide stable distal periarticular fixation. In spite of this enthusiasm however several studies have reported significant problems with healing. In the distal femur it is recognized that locking plate fixation may be too rigid if used in certain configurations that limit the essential micro movement required for biological healing. Implant failure may arise from rigid configurations that cause excessive hardware stress concentrations. In an attempt to address these problems longer plates and an increased working length have been proposed to reduce construct rigidity. The purpose of our study is to investigate whether an increased working length translates into improved healing.
Plant, Caroline Elizabeth. "Outcome and management of acute dorsally displaced fractures of the distal radius." Thesis, University of Warwick, 2016. http://wrap.warwick.ac.uk/89823/.
Повний текст джерелаLouw, Frederik Marthinus. "Neurovascular complications in displaced extension-type supracondylar fractures in children : outcome of conservative management." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/12517.
Повний текст джерелаThe aim of our study was to review our conservative management of neurovascular complications in displaced extension-type supracond ylar fractures of the humerus in children. We critically analysed the outcomes. Our results shall aim to clarify the management of this contentious issue.
van, Essen Ellen. "The efficacy of arcuate dynamic traction splintage in the treatment of intra-articular fractures of the proximal interphalangeal joints of the hand a retrospective descriptive review : this dissertation [thesis] is submitted to Auckland University of Technology in partial fulfillment for the degree of Master of Health Science, October 2003 /." Full thesis. Abstract, 2003. http://puka2.aut.ac.nz/ait/theses/VanEssenE.pdf.
Повний текст джерелаDangor, Zain. "Outcomes of double miniplate osteosynthesis in the immediate management of infected mandible fractures." University of the Western Cape, 2020. http://hdl.handle.net/11394/7264.
Повний текст джерелаIntroduction: A common complication of poorly managed mandible fractures is infection. There is a consensus amongst clinicians in treating infected mandible fractures in an immediate setting. The approach includes drainage of the purulent discharge, debridement of the fracture, removal of teeth in the fracture line and immediate fixation. Fixation can be load bearing or load sharing in nature. Although clinicians advocate for the use of a reconstruction load bearing plate, a double miniplate fixation could be an alternative. Aim: The aim is to assess the outcomes of double miniplate osteosynthesis in the immediate management of infected mandible fractures Material and method: A prospective cohort study was conducted. The sample size was 20 (n =20). Infections were treated with an incision and drainage and the fractures fixated with a double miniplate fixation system. Pain scores, fracture union, fracture stability and surgical times were measured. Follow–up visits included one week, six weeks and three months respectively. Results: Mandibular angle fractures were most commonly infected. The most common cause of infection were teeth in the line of fracture. The buccal fascial space was the most commonly involved fascial space in regard to spread of infection. Nineteen of the twenty cases attained fracture stability. However, complications commonly encountered were persistent infection and wound dehiscence. Conclusion: Although a limited number of clinical cases were treated, the results correspond with the current literature when an immediate miniplate fixation protocol is used in infected mandible fractures. However, complications encountered in the study included the persistence of infection and wound dehiscence.
Mattsson, Per. "Resorbable Bone Cement for Augmentation of Hip Fracture." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5822.
Повний текст джерелаEkman, Anna. "Hips at risk osteoporosis and prevention of hip fractures." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-4930-1/.
Повний текст джерелаDelisle, Josée. "Predicting factors of contralateral hip fractures among patients above 55 years of age." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101112.
Повний текст джерелаMethods. A case control study with matched pairs was conducted, through a retrospective chart review of patients admitted for hip fractures at the Jewish General Hospital (JGH) and the Montreal General Hospital (MGH) between 1992 and 2004.
Results. Contralateral hip fractures were most strongly associated with the use of mobility aid (OR= 5.69, CI 95% (3.20-10.14)). No other risk factors could be identified as predictors, probably due to missing data.
Conclusion. This study confirms the use of mobility aid as a predictor of contralateral hip fractures. Future prospective risk studies may further optimize the diagnostic accuracy for predicting contralateral hip fractures.
Chyfetz, Michael. "Geriatric hip fractures: do they necessitate admission to a Level 1 trauma center?" Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114604.
Повний текст джерелаCONTEXTE: Fractures de la hanche suite à une importante mortalité, la morbidité et les coûts. Les chutes sont le principal mécanisme de blessure chez les personnes âgées avec des fractures de la hanche liées à un coût annuel de 9 milliards de dollars aux États-Unis. Dans la prochaine décennie, on estime qu'environ 25% de la population canadienne sera âgée de 65 ans et plus. Le coût des soins de traumatologie est élevé, ce qui soulève des questions sur la valeur du traitement des fractures de la hanche isolées au niveau 1 (tertiaire) des centres de traumatologie. OBJECTIFS: Pour effectuer une analyse coûts-efficacité analyse des fractures de la hanche isolés gériatriques traités dans les centres de traumatologie de niveau 1 par rapport aux niveaux II et III. Centres Méthodes: Une étude de cohorte rétrospective a été composé de patients de plus de 65 ans traités pour des fractures de la hanche isolées dans la province de Québec, au Canada entre Janvier 1, 1998 et Décembre 31, 2002. Les données de l'étude a été obtenue à partir du Registre des traumatismes du Québec (QTR) et 3 cohortes de patients ont été créés selon le traitement au niveau 3 I, 29 II niveau, et 21 centres de traumatologie de niveau III. Le critère principal était coût total du traitement définis comme les coûts hospitaliers pour les soins aux patients de l'heure d'arrivée à l'hôpital de se décharger. Toutes les analyses statistiques ont été réalisées avec SPSS version 19,0 (SPSS Inc, Chicago, Illinois). Résultats: Nous avons identifié 11.009 cas qui répondaient à nos critères d'inclusion. La majorité des patients étaient des femmes (77%). L'âge moyen était de 82 (intervalle: 65-105; SD: 7,5). La grande majorité (96,9%) des admissions étaient à la suite de chutes. Il n'y avait pas de différences significatives en ce qui concerne moyenne d'âge des patients, le taux de complications et de la mortalité parmi les patients admis au niveau 1, 2 et 3 centres de traumatologie. Durée moyenne de séjour pour tous les patients était de 15,4 jours (intervalle de confiance à 95%: 2-55). Notre étude a montré une réduction de 20% et 60% des économies de l'ordre de $ 5 et $ 16 millions de dollars lorsque les patients sont admis au niveau 2 et 3 centres de traumatologie par rapport au niveau 1 centres. CONCLUSIONS: Les centres de traumatologie de niveau 1 ne pas améliorer les résultats fonctionnels à long terme et de réadaptation gériatrique du patient de fracture de la hanche isolé par rapport aux niveaux 2 et 3 centres. Nos résultats suggèrent que le traitement des fractures de la hanche isolés dans les Centres de traumatologie de niveau 1 n'est pas rentable. Un des critères de triage séparées pour les fractures de la hanche gériatriques isolés pourrait conduire à une meilleure utilisation des ressources, la rentabilité et les résultats des soins aigus.MOTS CLÉS: Personnes âgées, isolées fractures de la hanche, coûts des soins de traumatologie, le rendement centre de traumatologie de niveau I.
Chow, Lop-keung Raymond. "Clinical morbidity of resorbable plates and screws for internal fixation in orthognathic surgery." Click to view the E-thesis via HKUTO, 2003. http://sunzi.lib.hku.hk/hkuto/record/B31954285.
Повний текст джерелаSin, Tak-nam, and 冼德藍. "Evidence-based clinical practice guidelines for care of skeletal pin sites in orthopaedic patients." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44626332.
Повний текст джерелаSia, Charles Pactol, and 謝漢明. "Internal versus intermaxillary fixation in vertical subsigmoid osteotomy for mandibular setback: arandomized controlled trial." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46600097.
Повний текст джерелаParekh, Jugal. "Minimally invasive approach for surgical treatment of proximal femur fractures." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3100/.
Повний текст джерелаBarouni, Elyas. "Soft tissue Reconstruction of Gustilo-Anderson Grade IIIB Open Extra-Articular Tibial Fractures at a Tertiary Hospital in Cape Town, South Africa: A Retrospective Case Series." Master's thesis, Faculty of Health Sciences, 2020. http://hdl.handle.net/11427/32588.
Повний текст джерелаChow, Lop-keung Raymond, and 周立強. "Clinical morbidity of resorbable plates and screws for internal fixation in orthognathic surgery." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31954285.
Повний текст джерела葉永玉 and Wing-yuk Ip. "Design and biomechanical study of internal fixation devices for difficult phalangeal fractures." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B3197966X.
Повний текст джерелаWasserman, Halley M. M. D. "Low bone mineral density and fractures are highly prevalent in pediatric patients with Spinal Muscular Atrophy regardless of disease severity." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458299334.
Повний текст джерелаChiarello, Eugenio <1981>. "Evaluation of the Effectiveness of Femoral Neck Prophylactic Surgery in Elderly Osteoporotic Patiens to Prevent Hip Fractures." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7302/.
Повний текст джерелаShituleni, Sibasthiaan Gometomab. "Displaced intracapsular neck of femur fractures: dislocation rate after total hip arthroplasty." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/16788.
Повний текст джерелаBackground: Dislocation is one of the most common orthopaedic complications after primary total hip arthroplasty (THA). The reported dislocation rate in elective THR is 5 - 8%. This number increases up to 22% for THA done for neck of femur fractures. Larger femoral head sizes increase the head-neck ratio and range of motion before impingement, therefore reducing the dislocation rate. Due to the reported increase in dislocation for trauma, some surgeons prefer to do a hemi-arthroplasty or open reduction and internal fixation (ORIF). Methods: A retrospective review of all THA done for neck of femur fractures during 2006 - 2012 was undertaken at a large referral hospital. Records were reviewed for patient related and surgical risk factors. We excluded all pathological fractures, extra-capsular fractures and failed ORIF. Results: A total of 96 cases were identified as suitable for analysis. Average age at surgery was 73.2 years (range 30 - 81). Delay to surgery was 5.3 days (range 1 - 63). Average follow up period was 18.3 months (range 3 months - 4.3years). Four patients (4.3%) had a confirmed dislocation. The four patients who had confirmed dislocation had the following characteristics, 28 mm femoral head size, age over 60 years, 2 posterior approaches and 3 females, although not statistically significant. Conclusion: The outcomes of THR in patients with neck of femur fractures can be favourable and provide good long-term prosthesis survival. We report on low dislocation rate post total hip replacement for intra-capsular neck of femur fractures.
Schmaedecke, Alexandre. "Avaliação biomecânica de diferentes bloqueios transcorticais de interlocking nail em relação às forças de torção, encurvamento e axiais atuantes em fraturas diafisárias de fêmur de cães - estudo in vitro." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-06062007-154221/.
Повний текст джерелаThe advent of biological osteosynthesis is an important advance in the orthopedics development. The advantages that the rods of Interlocking Nail have clinically demonstrated, as method of internal fixation that promotes adequate bone callous formation, respecting the basic premises of the modern orthopedics, with patient retaking its activities of active, precocious and painless form, carry this technique to the first choice in terms of treatment of femoral comminutive fractures in human and small animal patients. However, face to few availability of biomechanical data disposed in bibliography, this non destructive biomechanical study had the aim to demonstrate the standard of interfragmentary motion, in Interlocking nails osteosynthesis. This research was developed contemplating five different groups, with six elements each group, in an in vitro analysis, in relation to four different possibilities of transcortical blockade. The behavior of the system when the osteosynthesis was made through one lesser length to the ideal interlocking rod was also evaluated. All groups were submitted to the assays of eccentric compression, bending and torsion, through photogrammetric analysis and comparison to the analysis of rigidity data, disposed for the Kratos® universal machine of mechanical assays, model 5002 endowed with 981 N (100 kgf) load cell. The analysis of disposed results did not present significant difference between the groups in the considered assays, neither for photogrammetric analysis nor for rigidity analysis, being the average of the interfragmentary motion lesser that one millimeter on all of the studied groups. These data biomecanically demonstrate the applicability of the interlocking nail technique in medial third cominnutive femoral fractures in dogs, including, front to the necessity of the surgeon, the possibility to opt to any of the techniques of blockade studied.
Machino, Masaaki, Yasutsugu Yukawa, Tetsuro Hida, Yoshiharu Oka, Teruo Terashima, Susumu Kinoshita, and Fumihiko Kato. "A Prospective Randomized Study for Postoperative Pain Relief of Lower Extremity Fractures: Efficacy of Intrathecal Morphine Administration." Nagoya University School of Medicine, 2010. http://hdl.handle.net/2237/14176.
Повний текст джерелаVinnars, Bertil. "Scaphoid fractures : Studies on diagnosis and treatment." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8845.
Повний текст джерелаNasomyont, Nat. "The Impact of Oral Bisphosphonate Therapy on Vertebral Morphometry in Patients with Duchenne Muscular Dystrophy and Glucocorticoid-Induced Osteoporosis." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1592168905130579.
Повний текст джерелаDamas, Anny-France. "L’actualité des traités chirurgicaux dans la Collection Hippocratique." Thesis, Paris 4, 2012. http://www.theses.fr/2012PA040233.
Повний текст джерелаThe present study focuses on surgery procedures in fifth and fourth century B.-C. Greece. The analysis of these procedures is based on information stemming from the text constituting the Hippocratic Corpus as well as from Hippocrates’ commentators such as Celsus and Galen- and modern surgeons. The texts analyzed particularly those named “surgical “are those describing a manual intervention on the human body, most frequently supported by an instrument considered as “surgical.” They offer indications on the pathologies treated. Certain iconographic documents are of particular interest. The confrontation between Hippocratic texts and modern surgical techniques will enable to estimate the possibility of restitution of the surgical procedures’ conditions by the Hippocratic surgeons
Johansson, Torsten. "Displaced Femoral Neck Fractures : A prospective randomized study of clinical outcome, nutrition and costs." Doctoral thesis, Linköping : Univ, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5233.
Повний текст джерелаSkoglund, Björn. "Following the mevalonate pathway to bone heal alley." Doctoral thesis, Linköpings universitet, Ortopedi och idrottsmedicin, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-11282.
Повний текст джерелаAguiar, Leonardo Toledo de. "Avaliação do efeito do metotrexato na reparação tecidual em um defeito ósseo simulando fratura de mandíbula em ratos." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/5/5160/tde-24032009-163741/.
Повний текст джерелаPurpose: The present study aims to verify the effect of high and low dose of methotrexate (MTX) treatment on bone repair of mandibular fractures in rats. Methods: The experimental model employed consists in creating a defect in rat mandible, similar to a fracture. Eighty rats were distributed in 4 groups of 20 animals that received, intraperitoneally: saline (1 ml, after surgery); dexametazone (DX, 0.15 mg/Kg, one dose at surgery); high dose MTX (1.6 mg/Kg, weekly); low dose MTX, (0.25 mg/Kg, weekly). Groups of five animals were sacrificed on the 1st, 7th, 15th and 30th day after surgery. Mandibles were submitted to radiographic analysis to measure the distance between bony edges and the area of osteotomy. Histopathological evaluation was performed in digitalized images using an analyzer software to examine cartilage and bone formation. Results: The treatments did not alter any evaluated parameters on days 1 and 7 after surgery. Control animals sacrificed on the 15th day after surgery had a reduction of the distance between bony ends and in the area of osteotomy, as well as a great increase in cartilage formation. The pattern of these parameters in animals treated with low dose MTX and DX did not differ from control group. However, animals treated with higher dose of MTX kept increasing the distance between bony ends and the area of osteotomy, and the increase in cartilage formation was practically inexistent. On the 30th day after surgery, control animals had pratically recovered the fracture region, as well as those treated with low dose MTX. The group treated with higher dose MTX and DX still had an open bone defect. Conclusions: This study clearly shows that low dose MTX did not affect bone healing of mandibular fractures in rats, in contrast to a higher dose, which promotes impairment of bone regeneration.
楊國泰 and Kwok-tai Cathay Yeung. "Finite element modeling of bone cement for vertebroplasty." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31228021.
Повний текст джерелаFillat, Gomà Ferran. "Influència de la impressió 3D en la categorització de les fractures d’húmer proximal." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/671997.
Повний текст джерелаLos sistemas de clasificación de las fracturas de húmero proximal han demostrado de forma reiterada una baja concordancia interobservador. Estos sistemas son importantes para estandarizar el proceso diagnóstico y facilitar la comunicación y las decisiones terapéuticas. También nos permiten predecir y comparar los resultados en función del tratamiento realizado (manejo quirúrgico u ortopédico) y para compartirlo con la comunidad médico-científica. Las razones de este nivel bajo de concordancia interobservador son diversas: la técnica de imagen utilizada, la experiencia del observador, los tipos de clasificaciones, etc. La interpretación de las imágenes médicas en dos dimensiones ha supuesto durante muchos años (y todavía es el día de hoy), el punto de partida en el proceso diagnóstico y de tratamiento de las patologías del aparato locomotor. Su correcta interpretación está condicionada por la capacidad de abstracción de la imagen de cada uno. La impresión 3D está revolucionando, no sólo el sector industrial, sino también el mundo de la medicina. Ante las múltiples aplicaciones clínicas de la impresión 3D, los modelos anatómicos 3D se postulan principalmente como una herramienta docente y diagnóstica en cirugía ortopédica y traumatología. Como se trata de una tecnología relativamente nueva, en la literatura aún se encuentran pocas evidencias científicas de sus beneficios. Ante la emergente impacto de la impresión 3D en cirugía ortopédica y traumatología, y dado a que la concordancia interobservador en la clasificación de las fracturas de húmero proximal sigue siendo un problema sin resolver, en este trabajo se pretenden aportar evidencias de cómo influye el uso de modelos anatómicos impresos en 3D de fracturas de húmero proximal a la hora de su clasificación. Además, se propone un nuevo tipo de clasificación cuantitativa basada en el 3D, que podría mejorar el problema existente en la clasificación de fracturas de húmero proximal.
Classification systems for proximal humerus fractures have repeatedly demonstrated a low level of interobserver agreement. These systems are important for standardizing the diagnostic process and facilitating communication and therapeutic decisions. They also allow us to predict and compare results based on the treatment performed (surgical or orthopedic management) and to share it with the medical-scientific community. The reasons for this low level of inter-observer agreement are diverse: the imaging technique used, the experience of the observer, the types of classifications, etc. The interpretation of medical images in two dimensions has been for many years (and still is today), the starting point in the diagnostic and treatment process of pathologies of the locomotor system. Its correct interpretation is conditioned by the capacity of abstraction of the image of each one. 3D printing is revolutionizing not only the industrial sector, but also the world of medicine. In view of the multiple clinical applications of 3D printing, 3D anatomical models are mainly postulated as a teaching and diagnostic tool in orthopedic surgery and traumatology. As this is a relatively new technology, there is still little scientific evidence of its benefits in the literature. Given the emerging impact of 3D printing in orthopedic surgery and traumatology, and given that interobserver agreement in the classification of proximal humerus fractures remains an unresolved problem, this work aims to provide evidence of how the use of 3D printed anatomical models of proximal humerus fractures influences their classification. Furthermore, a new type of quantitative classification based on 3D is proposed, which could improve the existing problem in the classification of proximal humerus fractures.
Universitat Autònoma de Barcelona. Programa de Doctorat en Cirurgia i Ciències Morfològiques
Bastos, Endrigo Oliveira. "Avaliação do tratamento cirúrgico das fraturas de côndilo mandibular pelo acesso retromandibular transparotídeo." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/5/5158/tde-21122010-120024/.
Повний текст джерелаINTRODUCTION: Open reduction and rigid internal fixation through retromandibular transparotid approach has been increasingly accepted as one of the options for treatment of fractures of the mandibular condyle, which is still a controversial subject. OBJECTIVES: To evaluate surgical treatment through retromandibular transparotid approach for extracapsular fractures of mandibular condyle in adults. METHODS: Ten consecutive patients operated on by the author at University of São Paulo Medical School Hospital were retrospectively evaluated. All of them were adults with extracapsular fractures of mandibular condyle causing shortening greater than 2 mm or deviation greater than 10 degrees. Patients were operated through retromandibular transparotid approach and had their pre and postoperative CT scans assessed with tridimensional reconstruction. Quality of reduction at fracture site was classified as optimal, satisfactory or poor. In seven patients with unilateral fractures, non-fractured sides served as controls in quantitative assessment condylar head positioning. Variables condylar height and sagittal, axial and coronal inclinations were measured in preoperative and postoperative CT scans, on fractured and not fractured sides. The different measures were compared. On morbidity of the approach, were evaluated: facial animation asymmetry, incidence of salivary fistula or infection and quality of scar. At least 18 months after surgery, patients were called for an assessment of postoperative period. They were asked about the presence of clicking joints, limitation on mouth opening, facial pain and poor mastication. Situation at postoperative period was compared with the one previous to trauma. Patients were examined for clicking or pain on palpation, uncorrected intercuspation, chin deviation on mouth opening and limitation on protrusion or laterality. The maximum mouth opening was measured. RESULTS: At the fracture site, reduction was rated as satisfactory or ideal in nine patients. As for the positioning of the condylar head, for the variables height and coronal condylar inclination, preoperatively, there was statistical difference between fractured and normal sides. Postoperatively, there was no difference for any variable when comparing fractured and normal sides. There were no asymmetries in facial animation, salivary fistula or infection since immediate postoperative period. One patient had hypertrophic scar. In the late postoperative period, were found: maximum mouth opening between 39 and 55 mm, chin deviation at oral opening in one patient and the emergence of clicking in two, data that was not statistically different from the period before the trauma. CONCLUSIONS: Treatment of shortened or deviated extracapsular fractures of the mandibular condyle in adults by open reduction and rigid internal fixation through retromandibular transparotid approach can provide correction of condylar anatomy with low morbidity and satisfactory functional outcome
Baccarin, Daniel Castelo Branco. "Estudo mecânico "in vitro" da resistência a forças axiais do parafuso canulado de 3,5mm de diâmetro, em comparação ao parafuso convencional de mesmo diâmetro, em fraturas de cabeça e colo femoral." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-16042007-173138/.
Повний текст джерелаBecause of the complexity of osteosynthesis of femoral head and neck fractures and the difficulty of good reduction and fixation of the fractures, we studied comparatively the effects of load and axial forces of bone-conventional screws and bone-cannulated screws. The cannulated screw presents efficient compressive capacity and it presents a central cannula capable of simplifying the surgical technique if compared to conventional bone screws. We used two screws placed parallel, inserted in the lateral aspect of the femur, beneath the greater trocanter, directed to the femoral head, in fourteen femurs of dogs over 20Kg, subdivided in two groups of seven femurs each, the first with conventional screws and the second with cannulated screws, with no macroscopic or radiographic signs of bone diseases. The results didn´t show any statistical differences in maximum strength and rigidity of both groups and the implants didn´t suffer deformities in any essays, therefore we conclude that the resistances of conventional and cannulated screws, used in of femoral heads and necks fracture repairs, are similar.
Ljunggren, Ribom Eva. "Muscles, Estrogen, and Bone." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3779.
Повний текст джерелаCavalcanti, Samantha Cristine Santos Xisto Braga. "Avaliação da reparação da fratura de côndilo mandibular e da simetria facial em ratos tratados com metotrexato." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/23/23149/tde-04102011-121140/.
Повний текст джерелаlow doses as an antiinflammatory. The aim of this study was to evaluate the healing of the mandibular condyle fracture and facial symmetry in rats treated with MTX. 100 Wistar male rats undergone surgery using an experimental model of mandibular condyle fracture of the right side. The rats were distributed in four groups and received the following treatments: Control Saline (1 ml/week); Dexamethasone dexamethasone (0,15mg/kg); MTX Low dose MTX (3 mg/kg/week); MTX High dose MTX (30 mg/kg). Animals were sacrificed at one, seven, 15, 30 and 90 days postoperatively (n=5). Animals body weight were recorded. Blood has been taken to provide the biochemical analysis of total proteins and alkaline phosphatase. Radiographic axial exams from the heads were provided to cephalometric analysis. Linear measures of jaw and mandible, as well as angular measures of the mandibular deviation were done. The samples were histologically processed and coronal sections were obtained. Quantitative data were submitted to statistical analysis (=0,05). The animals regained body weight over the time, except in MTX High dose group. Total protein serum levels demonstrated the increase in initial periods and the alkaline phosphatase levels showed decrease in the periods of bone callus formation. There was reduction in the mandibular length and also changes in the jaw and progressive deviation in the mandible in relation to the skull basis in the MTX High dose group. The histological analysis revealed that there were repair of the bone and temporomandibular joint although in the MTX High dose group there was a delay in this process, in wich there was deviation of the condyle and one specimen was fibrous ankylosis. Histomorphometry revealed that the new bone formation area was lower in MTX High dose group. It was concluded that treatment with high dose MTX had a deleterious effect on facial symmetry of rats submitted to fracture of the condylar process and damaged the bone callus formation and repair of the temporomandibular joint, with possible induction of fibrous ankylosis.
Muñante, Cardenas Jose Luis. "Traumatismos faciais em pacientes pediatricos e adolescentes = analise epidemiologica." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289449.
Повний текст джерелаDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologika
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Resumo: Realizamos um estudo retrospectivo para analisar as diferentes características das fraturas faciais na população pediátrica atendida pela Área de Cirurgia Buco-Maxilo-facial da Faculdade de Odontologia de Piracicaba -UNICAMP entre 1999 e 2008. Foram analisados os prontuários de 2986 pacientes, dos quais 757 foram menores que 18 anos. Os seguintes parâmetros foram avaliados: idade, sexo, etiologia, localização e tipo de fratura, lesões associadas, tratamento e complicações. Resultados: Foram atendidos 530 crianças e adolescentes de gênero masculino (70,01%) e 227 do gênero feminino (29,99%), sendo os adolescentes o grupo etário mais afetado. As causas mais comuns das lesões foram os acidentes de bicicleta (220, 29,06%) e as quedas (215, 28,40%). O osso facial mais afetado por fraturas foi a mandíbula (112, 44,8%) e as lesões associadas mais freqüentes foram as lacerações e o trauma dentoalveolar. O tratamento foi cirúrgico em 75 casos (30%) e as principais complicações foram deiscência, hemorragia pósoperatória e infecção de material de fixação interna. Conclusões: Os acidentes de bicicleta e as quedas foram consideradas as principais causas de injurias maxilo-faciais. A mandíbula foi a mais afetada por fraturas. Estudos epidemiológicos de lesões faciais permitem o desenho das circunstâncias de risco e a identificação dos indivíduos mais sucetiveis. A avaliação da eficácia do tratamento instituído e a compreensão de suas complicações permite uma interpretação realista e coerente da melhor forma como estes doentes devem ser conduzidos.
Abstract: We performed a retrospective study to analyse the different characteristics of such fractures in the pediatric population of Piracicaba Region, Sao Paulo, Brazil. We reviewed the clinical records of 2986 patients. A total of 757 patients under 18 years were treated by the Oral and Maxillofacial Surgery Division of Piracicaba Dental School between 1999 and 2008.The following parameters were evaluated: age, sex, etiology, location and type of fracture, associated injury, treatment and complications. Results: There were 530 boys (70.01%) and 227 girls (29.99%), treated for injuries, with the main prevalence in teenage. The most common injury causes were bicycle accidents (220, 29.06%) followed by falls (215, 28.40%).The facial bone most affected by fractures was the mandible (112, 44.8%) and the associated injuries were lacerations, dentoalveolar trauma and craniofacial trauma. The treatment was surgical in 75 cases (30%) of cases and the main complications were dehiscence, post-operative infection and loosed of internal fixation material and facial paraesthesia. Conclusions: Bicycle accidents and falls were found to be the principal causes of maxillofacial injuries. The facial bone most affected by fractures was the mandible. Epidemiological studies of facial injuries enable the design of the risk circumstances and the identification of the most vulnerable individuals. The evaluation of the effectiveness of treatment instituted and understanding its complications allow a realistic and consistent interpretation about which is the best way for treating these patients.
Mestrado
Cirurgia e Traumatologia Buco-Maxilo-Faciais
Mestre em Clínica Odontológica
Mota, Carlos Windson Cavalcante. "Efeito da chalcona (Myracroduon Urundeuva Fr. All.) nas fraturas expostas induzidas em ratos." reponame:Repositório Institucional da UFC, 2006. http://www.repositorio.ufc.br/handle/riufc/7294.
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A chalcona é um complexo fitoterápico derivado da aroeira-do-sertão (Myracrodruon urundeuva Fr. All.), planta usada popularmente como antiinflamatório e cicatrizante. Avaliaram-se os efeitos anti-sépticos e cicatrizantes das chalconas nas feridas e o seu efeito sobre a consolidação óssea nas fraturas expostas induzidas em ratos. Utilizaram-se ratos Wistar machos adultos, com peso médio de 300g. A fratura foi realizada no fêmur esquerdo dos animais e exposta por 3h antes de iniciar o tratamento. Os animais foram distribuídos ao acaso em dois grupos: o grupo 1 o foco da fratura foi limpo com 100 mL de soro fisiológico 0,9% e o grupo 2, o foco da fratura foi limpo com 100 mL de soro fisiológico 0,9% e 40 mL de chalconas, na concentração de 10 mg de chalcona por 1 mL de solução salina a 0,9%. Em todos os animais foram realizadas culturas dos focos de fraturas antes de iniciar o tratamento que consistiu na osteosíntese intramedular com fio de Kirschener de 1 mm de diâmetro. Foi realizada a avaliação clínica e radiológica no pós-operatório imediato, no 7º, 14º, 21º e 28º dias do tratamento. Na avaliação clínica verificava-se o aspecto da ferida: sinais flogísticos, deiscência da ferida, fístula e ferida cicatrizada. No primeiro grupo, a cicatrização ocorreu após a 3º semana em 78,9 % dos animais; no segundo grupo, a cicatrização ocorreu a partir da 2º semana em 50 % dos ratos. Em todos os animais ocorreram contaminações, sendo o Staphylococcus aureus o microorganismo isolado mais comumente. No primeiro grupo, 80% dos animais perderam a redução na segunda semana, e no segundo grupo, 50% dos animais perderam a redução na terceira semana. Conclui-se que a chalcona na concentração testada não tem efeito na consolidação da fratura exposta induzida em rato, porém é benéfica na cicatrização da ferida operatória.
Ohrt, Gary Thomas. "Surgical simulation training models for orthopaedic fracture surgery." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/4888.
Повний текст джерелаSasaki, Sandra Umeda. "Estudo comparativo entre dois métodos de tratamento da lesão do ligamento cruzado posterior por avulsão óssea na tíbia : amarrilho artroscópico e fixação com parafuso por via posterior aberta." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/5/5140/tde-19042007-115606/.
Повний текст джерелаNowadays, good results on the management of posterior cruciate ligament bony avulsion of the tibia are associated with early surgical repair. The usual method of treatment is the open posterior approach with screw fixation, wich requires popliteal neurovascular bundle direct manipulation. This study presents a new arthroscopic suture and compares it with the conventional technique, using biomechanical tests and direct inspection in cadaveric specimens (20 knees). On both methods there was a fixation fail in one knee. The analisys of tibial posterior displacement (p=0,23) and stiffness (p=0,20) were similar for the two methods. The Arthroscopic suture presented is an effective reattachment method for this fracture pattern.
McLean, Gavin W. "An investigation into the balance of pro- and anti-inflammatory cytokines in cardiac surgery and hip fracture surgery." Thesis, Queen's University Belfast, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.727756.
Повний текст джерелаBenegas, Eduardo. "Estudo comparativo entre a haste intramedular bloqueada e a placa em ponte no tratamento cirúrgico das fraturas da diáfise do úmero." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/5/5140/tde-12022009-130247/.
Повний текст джерелаThe purpose of the study is to compare clinical and radiographic outcomes between nonreamed locked intramedullary nail and bridging plate for the treatment of humeral shaft fracture. Forty humeral shaft fractures in 39 patients, A, B or C AO types were treated between June 2003 and December 2007. The cases were randomly assigned into two groups being 21 fractures fixed by a 4.5 mm bridging plate, and 19 by nonreamed intramedullary locking nail. Two cases had open fractures, one Gustilo type II, the other type IIIa. Twenty five patients were male (64%), ages ranging from 19 to 75 years old (mean age 41 years and 10 months). The right side was treated in 22 patients (55%) and fall was the most frequent cause of fracture (46%). The minimal period of follow-up was six months and the maximum was 60 months for the bridging plate group (mean=34.5 months) and ranged from eight to 58 months (mean=27months) for the nail group. Only one case from the nail group presented a nonunion. One case, in the plate group, developed a deep infection, and another one, in the nail group, had a superficial infection. Two cases of the bridging plate group had adhesive capsulites and in one case of the nail group the distal screw became prominent. A transient neuropraxis of the antebrachial lateral cutaneous nerve was found in one case of the nail group, but it recovered in three days. There were no differences between the groups concerning pain, function, active flexion and strength of flexion of the shoulder, as well as pain, range of motion, muscle strength, and stability of the elbow. According to the UCLA score, we had 85.7% excellent and good results in the plate group and 79% in the nail group. According to Broberg and Morrey score for the elbow, we had 85.7% excellent and good results in the plate group and 90.5% in the nail group. Just one patient, from the nail group, was not satisfied with the final result, according to subjective criteria. In conclusion, there were no differences in the final clinical and radiographic results between the two methods of fixation
Charilaou, Johan. "Quantitative fit analysis of acromion fracture plating systems using three-dimensional anatomical modelling." Master's thesis, Faculty of Health Sciences, 2019. http://hdl.handle.net/11427/31486.
Повний текст джерелаKATO, FUMIHIKO, NAOKI ISHIGURO, MASAAKI MACHINO, KEIGO ITO, YASUTSUGU YUKAWA, and HIROAKI NAKASHIMA. "COMBINED POSTERIOR-ANTERIOR SURGERY FOR OSTEOPOROTIC DELAYED VERTEBRAL FRACTURE WITH NEUROLOGIC DEFICIT." Nagoya University School of Medicine, 2014. http://hdl.handle.net/2237/20549.
Повний текст джерелаSegevall, Cecilia. "Recovery following hip fracture surgery for older people living in rural areas." Licentiate thesis, Mittuniversitetet, Avdelningen för omvårdnad, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-34770.
Повний текст джерелаVid tidpunkten för framläggningen av avhandlingen var följande delarbete opublicerat: delarbete 1 inskickat.
At the time of the defence the following paper was unpublished: paper 1 submitted.
Barrera, Betanzos Fernando. "Development of innovative techniques for the manufacture of bioresorbable composites intended as fracture fixation devices." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49087/.
Повний текст джерела