Journal articles on the topic 'Buttocks muscles'
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1
Hwang, Sung Jae, Hilton Kaplan, Gerald E. Loeb, Han Sung Kim, and Young Ho Kim. "Pressure Distributions on the Buttocks and Thighs by Electrical Stimulation in the Sitting Posture." Key Engineering Materials 321-323 (October 2006): 984–87. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.984.
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Pressure distributions on the buttocks and thighs by the functional electrical stimulation on the gluteus maximus, sartorius and hamstring in the seating posture were analyzed for ten healthy young volunteers in order to determine which muscle can be stimulated for pressure ulcer prevention. Muscles were stimulated every 5 seconds over 30 seconds by the MP150 stimulator. Pressure distribution and ground reaction forces on the stimulated buttocks and thighs increased when the gluteus maximus was stimulated. Pressure on the stimulated thigh slightly decreased when stimulating sartorius and hamstring individually. With a simultaneous stimulation of the gluteus maximus and sartorius, pressures on the stimulated buttocks and thighs increased significantly, but pressure on the opposite buttock decreased significantly. With a simultaneous stimulation of the sartorius and hamstring, both pressure on the stimulated thigh and the ground reaction force significantly decreased.
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Chugay, Nikolas V. "Modifications of Buttock Augmentation." American Journal of Cosmetic Surgery 14, no. 4 (December 1997): 405–11. http://dx.doi.org/10.1177/074880689701400406.
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The traditional method of buttock enlargement, which involves making an incision in the lower portion of the buttocks in the infragluteal fold, frequently results in secondary infections and long recovery times. Because of the proximity of the incision to the rectum and the pressure on the incision, the patient usually requires several days of bed rest. In some instances, it is necessary to remove an otherwise satisfactory implant to correct an infection. The author has overcome this problem by placing the incision in the center of the buttock in the intergluteal fold. A custom-designed solid silicon prosthesis is then placed between the gluteus medius and the gluteus maximus in a space provided by the anatomical design of these two large muscles. The gluteus also provides a good sling for the prosthesis, thus preventing future drooping of the prosthesis. More than 20 buttock enlargements have been successfully performed using this technique with no major complications. Use of this new technique decreases the risk of infection from the anal region and produces a softer, more natural look. This technique is also resistant to possible rupture such as may occur with a nonsolid gel silicone augmentation.
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Akyol, Betül. "The Relationship Between Walk Distance and Muscle Strength, Muscle Pain in Visually Disabled People." Journal of Education and Training Studies 6, no. 4 (March 16, 2018): 104. http://dx.doi.org/10.11114/jets.v6i4.3043.
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The purpose of this study is to examine the relationship between six-minute walk test and muscle pain, muscle strength in visually disabled people. The study includes 50 visually disabled people, aged between 17, 21 ± 5,3. Participants were classified into three categories according to their degree of vision (B1, B2, B3). All participants were administered to six-minute walk test, muscle test and muscle pain threshold test.In B2 and B3 group there is significant moderate correlation between the walk distance and muscles. There were significant differences in pain threshold of quadriceps, pain threshold of hamstring and pain threshold of tibialis anterior among the groups. The data were evaluated using IBM SPSS Statistics 23.0 package software, and the level of significance was taken as p < 0.005.When the visually disabled people were classified according to their visual degree, it was noticed that visual area is important while walking. Muscle power is thought to be effective in walking ability. The muscles of the legs, backs and buttocks act as they walk and allow them to stay in balance. In addition to the muscular strength, people with muscle pain do not want to continue walking because they are feeling pain in their muscles as they walk.As a result, if we want to increase walking distance, which is an important part of daily life activities of visually impaired individuals, an exercise program should be organized to strengthen muscle groups that are effective in walking and to rehabilitate painful muscles.
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Solis, Leandro R., Daniel P. Hallihan, Richard R. E. Uwiera, Richard B. Thompson, Enid D. Pehowich, and Vivian K. Mushahwar. "Prevention of pressure-induced deep tissue injury using intermittent electrical stimulation." Journal of Applied Physiology 102, no. 5 (May 2007): 1992–2001. http://dx.doi.org/10.1152/japplphysiol.01092.2006.
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Pressure ulcers develop due to morphological and biochemical changes triggered by the combined effects of mechanical deformation, ischemia, and reperfusion that occur during extended periods of immobility. The goal of this study was to test the effectiveness of a novel electrical stimulation technique in the prevention of deep tissue injury (DTI). We propose that contractions elicited by intermittent electrical stimulation (IES) in muscles subjected to constant pressure would induce periodic relief in internal pressure; additionally, each contraction would also restore blood flow to the tissue. The application of constant pressure to the quadriceps muscles of rats generated a DTI that affected 60 ± 15% of the compressed muscle as assessed by magnetic resonance imaging. In contrast, in the groups of rats that received IES at 10- and 5-min intervals, DTI of the muscle was limited to 16 ± 16 and 25 ± 13%, respectively. Injury to the muscle was corroborated by histology. In an experiment with a human volunteer, compression of the buttocks reduced the oxygenation level of the muscles by ∼4%; after IES, oxygenation levels increased by ∼6% beyond baseline. Concurrently, the surface pressure profiles of the loaded muscles were redistributed and the high-pressure points were reduced during each IES-induced contraction. The results of this study indicate that IES significantly reduces the amount of DTI by increasing the oxygen available to the tissue and by modifying the pressure profiles of the loaded muscles. This presents a promising technique for the prevention of pressure ulcers in immobilized and/or insensate individuals.
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Gefen, A., N. Gefen, E. Linder-Ganz, and S. S. Margulies. "In Vivo Muscle Stiffening Under Bone Compression Promotes Deep Pressure Sores." Journal of Biomechanical Engineering 127, no. 3 (January 31, 2005): 512–24. http://dx.doi.org/10.1115/1.1894386.
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Pressure sores (PS) in deep muscles are potentially fatal and are considered one of the most costly complications in spinal cord injury patients. We hypothesize that continuous compression of the longissimus and gluteus muscles by the sacral and ischial bones during wheelchair sitting increases muscle stiffness around the bone-muscle interface over time, thereby causing muscles to bear intensified stresses in relentlessly widening regions, in a positive-feedback injury spiral. In this study, we measured long-term shear moduli of muscle tissue in vivo in rats after applying compression (35 KPa or 70 KPa for 1∕4–2 h, N=32), and evaluated tissue viability in matched groups (using phosphotungstic acid hematoxylin histology, N=10). We found significant (1.8-fold to 3.3-fold, p<0.05) stiffening of muscle tissue in vivo in muscles subjected to 35 KPa for 30 min or over, and in muscles subjected to 70 KPa for 15 min or over. By incorporating this effect into a finite element (FE) model of the buttocks of a wheelchair user we identified a mechanical stress wave which spreads from the bone-muscle interface outward through longissimus muscle tissue. After 4 h of FE simulated motionlessness, 50%–60% of the cross section of the longissimus was exposed to compressive stresses of 35 KPa or over (shown to induce cell death in rat muscle within 15 min). During these 4 h, the mean compressive stress across the transverse cross section of the longissimus increased by 30%–40%. The identification of the stiffening-stress-cell-death injury spiral developing during the initial 30 min of motionless sitting provides new mechanistic insight into deep PS formation and calls for reevaluation of the 1 h repositioning cycle recommended by the U.S. Department of Health.
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Tachibana, Kazuhiro, Noriyuki Ueki, Takuji Uchida, and Hiroshi Koga. "Randomized Comparison of the Therapeutic Effect of Acupuncture, Massage, and Tachibana-Style-Method on Stiff Shoulders by Measuring Muscle Firmness, VAS, Pulse, and Blood Pressure." Evidence-Based Complementary and Alternative Medicine 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/989705.
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To compare the therapeutic efficacy of acupuncture, massage, and Tachibana-Ryojutsu (one of Japanese traditional body balance therapy techniques (SEITAI)), on stiff shoulders, the subjects’ muscle firmness, blood pressure, pulse, VAS, and body temperature were measured before and after the treatment. Forty-seven volunteer subjects gave written informed consent to participate in this study. The subjects were randomly divided into three groups to receive acupuncture, massage, or Tachibana-Ryojutsu. Each therapy lasted for 90 seconds. The acupuncture treatment was applied by a retaining-needle at GB-21, massage was conducted softly on the shoulders, and Tachibana-Ryojutsu treated only the muscles and joints from the legs to buttocks without touching the shoulders or backs. The study indicated that the muscle firmness and VAS of the Tachibana-Ryojutsu group decreased significantly in comparison with the acupuncture and massage groups after treatment.
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Diaz Dilernia, Fernando, Ezequiel E. Zaidenberg, Sebastian Gamsie, Danilo E. R. Taype Zamboni, Guido S. Carabelli, Jorge D. Barla, and Carlos F. Sancineto. "Gluteal Compartment Syndrome Secondary to Pelvic Trauma." Case Reports in Orthopedics 2016 (2016): 1–4. http://dx.doi.org/10.1155/2016/2780295.
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Gluteal compartment syndrome (GCS) is extremely rare when compared to compartment syndrome in other anatomical regions, such as the forearm or the lower leg. It usually occurs in drug users following prolonged immobilization due to loss of consciousness. Another possible cause is trauma, which is rare and has only few reports in the literature. Physical examination may show tense and swollen buttocks and severe pain caused by passive range of motion. We present the case of a 70-year-old man who developed GCS after prolonged anterior-posterior pelvis compression. The physical examination revealed swelling, scrotal hematoma, and left ankle extension weakness. An unstable pelvic ring injury was diagnosed and the patient was taken to surgery. Measurement of the intracompartmental pressure was measured in the operating room, thereby confirming the diagnosis. Emergent fasciotomy was performed to decompress the three affected compartments. Trauma surgeons must be aware of the possibility of gluteal compartment syndrome in patients who have an acute pelvic trauma with buttock swelling and excessive pain of the gluteal region. Any delay in diagnosis or treatment can be devastating, causing permanent disability, irreversible loss of gluteal muscles, sciatic nerve palsy, kidney failure, or even death.
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Nonaka, Toshihiro, Motoki Sonohata, Shuhei Takeshita, Yosuke Oba, Yoshimasa Fujii, and Masaaki Mawatari. "Intramuscular Myxoma in the Supinator Muscle with Transient Postoperative Posterior Interosseous Nerve Palsy: A Case Report." Open Orthopaedics Journal 12, no. 1 (August 31, 2018): 353–57. http://dx.doi.org/10.2174/1874325001812010353.
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Background: Intramuscular myxomas are rare, benign mesenchymal tumors in the musculoskeletal system, and usually, the tumors arise in the large muscles of the thigh, buttocks, shoulder, and upper arm. However, a tumor of the forearm is very rare. Herein, we describe the case of an intramuscular myxoma in the supinator muscle of a 56-year-old female patient. Case Presentation: Magnetic resonance imaging showed a well-defined mass that was hypointense with the peritumoral fat ring sign. The differential diagnoses might have been myxoma, schwannoma, or intramuscular hemangioma. The histopathological image showed abundant myxoid tissue, hypocellularity, and poor vascularization. The cells of the tumor were spindle and stellate-shaped with normochromic nuclei. Based on these findings, the pathological diagnosis was an intramuscular myxoma. After excising the tumor, the patient had transient posterior interosseous nerve palsy. Conclusion: This tumor is curative by resection in toto; however, when the tumor exists in the forearm, surgeons should be careful to avoid damaging surrounding tissues because the tumor is very hard and relatively large compared to the forearm.
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Uslianti, Silvia, Tri Wahyudi, Ratih Rahmahwati, and Adelia Tamala. "Rancang bangun meja dan kursi kerja untuk perbaikan postur kerja pada pekerja pengolah ikan berdasarkan pengukuran NBM dan RULA." Operations Excellence: Journal of Applied Industrial Engineering 12, no. 3 (November 9, 2020): 298. http://dx.doi.org/10.22441/oe.2020.v12.i3.003.
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Slouching and squatting work postures in the fish cleaning process can cause skeletal muscle injury. Based on the results of previous research conducted by Adelia (2020), the results of the existing NBM show that workers have complaints in the muscles of the neck, arms, back, waist, buttocks, hands, wrists, thighs, knees, and feet. The result of total muscle complaints individual skeletal is 75, meaning that the existing work posture requires work improvement. Improvement of working posture can be done by designing work aids in the form of desks and chairs. The determination of the MSDs risk level category was carried out by identifying the skeletal muscle complaints felt by workers using a Nordic body map (NBM) questionnaire, a working posture assessment was carried out to determine the score level in work posture using the Rapid Upper Limb Assessment (RULA) method with the help of CATIA V5R20 software. Assistive devices in the form of desks and work chairs are designed based on complaints experienced by workers and use the anthropometric approach in determining the dimensions of work aids. Based on the results of the implementation of work aids, there was a change in the score for skeletal muscle complaints and work posture. The results showed that the average NBM value of individual muscle complaints was 56.75, this is included in the moderate risk level and the results of the RULA analysis on the repair work posture experienced a change in the final score, namely 4 (yellow).
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Gefen, Amit, and Einat Haberman. "Viscoelastic Properties of Ovine Adipose Tissue Covering the Gluteus Muscles." Journal of Biomechanical Engineering 129, no. 6 (April 19, 2007): 924–30. http://dx.doi.org/10.1115/1.2800830.
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Pressure-related deep tissue injury (DTI) is a life-risking form of pressure ulcers threatening immobilized and neurologically impaired patients. In DTI, necrosis of muscle and enveloping adipose tissues occurs under intact skin, owing to prolonged compression by bony prominences. Modeling the process of DTI in the buttocks requires knowledge on viscoelastic mechanical properties of the white adipose tissue covering the gluteus muscles. However, this information is missing in the literature. Our major objectives in this study were therefore to (i) measure short-term (HS) and long-term (HL) aggregate moduli of adipose tissue covering the glutei of sheep, (ii) determine the effects of preconditioning on HS and HL, and (iii) determine the time course of stress relaxation in terms of the transient aggregate modulus H(t) in nonpreconditioned (NPC) and preconditioned (PC) tissues. We tested 20 fresh tissue specimens (from 20 mature animals) in vitro: 10 specimens in confined compression for obtaining the complete H(t) response to a ramp-and-hold protocol (ramp rate of 300mm∕s), and 10 other specimens in swift indentations for obtaining comparable short-term elastic moduli at higher ramp rates (2000mm∕s). We found that HS in confined compression were 28.9±14.9kPa and 18.1±6.9kPa for the NPC and PC specimens, respectively. The HL property, 10.3±4.2kPa, was not affected by preconditioning. The transient aggregate modulus H(t) always reached the plateau phase (less than 10% difference between H(t) and HL) within 2min, which is substantially shorter than the times for DTI onset reported in previous animal studies. The short-term elastic moduli at high indentation rates were 22.6±10kPa and 15.8±9.4kPa for the NPC and PC test conditions, respectively. Given a Poisson’s ratio of 0.495, comparison of short-term elastic moduli between the high and slow rate tests indicated a strong deformation-rate dependency. The most relevant property for modeling adipose tissue as related to DTI is found to be HL, which is conveniently unaffected by preconditioning. The mechanical characteristics of white adipose tissue provided herein are useful for analytical as well as numerical models of DTI, which are essential for understanding this serious malady.
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Gyawali, Selina, Leandro Solis, Su Ling Chong, Cara Curtis, Peter Seres, Isaak Kornelsen, Richard Thompson, and Vivian K. Mushahwar. "Intermittent electrical stimulation redistributes pressure and promotes tissue oxygenation in loaded muscles of individuals with spinal cord injury." Journal of Applied Physiology 110, no. 1 (January 2011): 246–55. http://dx.doi.org/10.1152/japplphysiol.00661.2010.
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Deep tissue injury (DTI) is a severe form of pressure ulcer that originates at the bone-muscle interface. It results from mechanical damage and ischemic injury due to unrelieved pressure. Currently, there are no established clinical methods to detect the formation of DTI. Moreover, despite the many recommended methods for preventing pressure ulcers, none so far has significantly reduced the incidence of DTI. The goal of this study was to assess the effectiveness of a new electrical stimulation-based intervention, termed intermittent electrical stimulation (IES), in ameliorating the factors leading to DTI in individuals with compromised mobility and sensation. Specifically, we sought to determine whether IES-induced contractions in the gluteal muscles can 1) reduce pressure in tissue surrounding bony prominences susceptible to the development of DTI and 2) increase oxygenation in deep tissue. Experiments were conducted in individuals with spinal cord injury, and two paradigms of IES were utilized to induce contractions in the gluteus maximus muscles of the seated participants. Changes in surface pressure around the ischial tuberosities were assessed using a pressure-sensing mattress, and changes in deep tissue oxygenation were indirectly assessed using T2*-weighted magnetic resonance imaging (MRI) techniques. Both IES paradigms significantly reduced pressure around the bony prominences in the buttocks by an average of 10–26% ( P < 0.05). Furthermore, both IES paradigms induced significant increases in T2* signal intensity (SI), indicating significant increases in tissue oxygenation, which were sustained for the duration of each 10-min trial ( P < 0.05). Maximal increases in SI ranged from 2–3.3% (arbitrary units). Direct measurements of oxygenation in adult rats revealed that IES produces up to a 100% increase in tissue oxygenation. The results suggest that IES directly targets factors contributing to the development of DTI in people with reduced mobility and sensation and may therefore be an effective method for the prevention of deep pressure ulcers.
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Rifki, Muhammad, and Rosyadi Aziz Rahmat. "USE OF KB INJECTIONS FOR 3 MONTHS AT THE PUSKESMAS BALOI PERMAI, BATAM CITY." Zona Kedokteran: Program Studi Pendidikan Dokter Universitas Batam 11, no. 1 (April 15, 2021): 27. http://dx.doi.org/10.37776/zked.v11i1.531.
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Injectable birth control methods use medroxyprogesterone (a type of progestin) which is injected once or 3 months into the buttocks or upper arm muscles. This is very effective but can interfere with the menstrual cycle. The results of several studies conducted on injection family planning acceptors showed that the factors associated with injection contraceptive use were menstrual disorders 51.25%, 36.25% increase in body weight and an increase in blood pressure. Some of the results of studies conducted on injection contraceptive acceptors showed that factors which is associated with the use of injection contraceptives is the occurrence of menstrual disorders 51.25%, weight gain 36.25% and an increase in blood pressure 3.75% (Eiska, 2007). Method : The research objective was to determine the use of 3-month injection of family planning at the UPT Puskesmas Baloi Permai. The population of this study were mothers who used 3-month injection contraception. Sampling with purposive sampling technique. The number of samples is 98 respondents. Result :The univariate results obtained were more than half of the respondents who used 3-month injection contraception (57.1%). Conclusion : Based on the results of the research that has been carried out, it can be concluded as follows : The conclusion in this study was that 98 respondents obtained the results, namely, respondents who used injection contraceptives for 3 months with categories using as many as 92 people (93.9%
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Yoon, Kyung Bong. "Ultrasound-Guided Quadratus Femoris Muscle Injection in Patients with Lower Buttock Pain: Novel Ultrasound-Guided Approach and Clinical Effectiveness." July 2016 6;19, no. 6;7 (July 2016): E863—E870. http://dx.doi.org/10.36076/ppj/2016.19.e863.
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Background: The quadratus femoris (QF) muscle is a possible source of lower buttock pain as evidenced by what is known about the pathophysiology of ischiofemoral impingement syndrome. However, there are few reports about the interventional management of the QF muscle as a pain generator. Objective: To describe an ultrasound-guided QF muscle injection technique in patients with lower buttock pain suspected of QF muscle pathology and to report the result of treatment. Study Design: Retrospective evaluation. Setting: Outpatient department for interventional pain management at a university hospital. Methods: We studied 14 patients who had deep tenderness localized to the lower buttock region at a point halfway between the lateral prominence of the greater trochanter and the ischial tuberosity corresponding to the location of the QF muscle belly. Under ultrasound guidance, 8 mL of 0.25% lidocaine was injected into the QF muscle. Pain scores were assessed prior to the first injection and 2 weeks after the last injection. Patient satisfaction was also assessed. Results: When compared before and 2 weeks after last QF muscle injection, the mean pain score decreased by 49.3% (6.7 ± 2.3 to 3.4 ± 2.1, P < 0.001). Two weeks after the last injection, approximately 70% of patients (10 of 14 patients) expressed their satisfaction as excellent or good and the average frequency of injection was 2.5 times. There were no complications observed. Limitations: The results of this study should be considered preliminary owing to the small sample size and lack of a control group, and the retrospective characteristics of this study may have introduced a selection bias. Conclusions: Ultrasound-guided QF muscle injection with local anesthetic helps alleviate pain in patients with lower buttock pain attributed to the QF muscle, and leads to high levels of satisfaction for patients. A randomized placebo-controlled trial should be considered in the future. Key words: Buttocks, injections, intramuscular, myofascial pain syndromes, quadratus femoris, ultrasonography
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Ro, Tae Hoon, and Lance Edmonds. "Diagnosis and Management of Piriformis Syndrome: A Rare Anatomic Variant Analyzed by Magnetic Resonance Imaging." Journal of Clinical Imaging Science 8 (February 21, 2018): 6. http://dx.doi.org/10.4103/jcis.jcis_58_17.
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Piriformis syndrome is an uncommon condition that causes significant pain in the posterior lower buttocks and leg due to entrapment of the sciatic nerve at the level of the piriformis muscle. In the typical anatomical presentation, the sciatic nerve exits directly ventral and inferior to the piriformis muscle and continues down the posterior leg. Several causes that have been linked to this condition include trauma, differences in leg length, hip arthroplasty, inflammation, neoplastic mass effect, and anatomic variations. A female presented with left-sided lower back and buttock pain with radiation down the posterior leg. After magnetic resonance imaging was performed, an uncommon sciatic anatomical form was identified. Although research is limited, surgical intervention shows promising results for these conditions. Accurate diagnosis and imaging modalities may help in the appropriate management of these patients.
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SLAMET, Samuel Susanto, Yoshiyuki TANABE, Naoki TAKANO, and Tomohisa NAGASAO. "F402 Biomechanics Analysis of Pressure Ulcers using Damaged Interface Model between Bone and Muscle in the Human Buttocks." Proceedings of The Computational Mechanics Conference 2011.24 (2011): _F—47_—_F—48_. http://dx.doi.org/10.1299/jsmecmd.2011.24._f-47_.
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Bedrov, A. Ya, A. A. Moiseev, A. V. Belozertseva, A. N. Morozov, G. G. Khubulava, Yu A. Pugachenko, and A. V. Baykova. "The patency of internal iliac arteries and its role in the development of buttock claudication syndrome in the remote period after open infrarenal aortic aneurysm repair." Grekov's Bulletin of Surgery 178, no. 4 (September 9, 2019): 34–41. http://dx.doi.org/10.24884/0042-4625-2019-178-4-34-41.
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The OBJECTIVE was to study the patency of the internal iliac artery and its effect to gluteus muscles blood supply and frequency of buttock claudication occurrence in the remote period after open infrarenal aortic aneurysm repair. MATERIAL AND METHODS. Examination of 37 patients after open infrarenal aortic aneurysm repair included collection of complaints, anamnesis, making CT scan with contrast and pelvic perfusion tomography. These methods allowed to assess the patency of the prosthesis and iliac arteries, calculate average blood flow rate in buttock muscles and frequency of buttock claudication occurrence depending on the lesion of the internal iliac arteries. RESULTS. Five-year patency of the internal iliac artery was 93 %. In case of passable internal iliac artery, the average blood flow rate in the ipsilateral buttock muscles was authentically higher than the same indicator in groups with stenotic or occlusive lesion of the internal iliac artery and its branches. In case of the disturbed internal iliac artery patency, the frequency of occurrence of the buttock claudication in the same side reached 50 %. CONCLUSION. High five-year internal iliac artery patency after open infrarenal aortic aneurysm repair attested the necessity of preservation the main blood flow in these arteries during the open infrarenal aortic aneurysm repair for the purpose of buttock claudication prevention. The CT scan allowed to evaluate the internal iliac artery patency and the average blood flow rate in the buttock muscles through perfusion tomography method which was necessary for differential diagnosis of the buttock claudication syndrome.
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Nitz, JC, YR Burns, and RV Jackson. "A longitudinal physical profile assessment of skeletal muscle manifestations in myotonic dystrophy." Clinical Rehabilitation 13, no. 1_suppl (January 1999): 64–73. http://dx.doi.org/10.1177/026921559901300109.
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Objectives: To develop an assessment that describes the skeletal muscle manifestations in myotonic dystrophy subjects and then use it to quantify the presentation of skeletal muscle disability and to show change over time. Design: A quantified skeletal muscle assessment was developed and applied three times over a two-year period at intervals around 12 months. Thirty-six subjects with myotonic dystrophy and 20 subjects without neuromuscular disability were evaluated. The assessment comprised manual muscle testing of five pairs of muscles, measuring neck flexor strength with a strain gauge, respiratory function tests, power and lateral pinch grip strength, all tests of impairment. Assessment of the ability to move from sitting to standing and fasten buttons tested disability. Results: Results from subjects with myotonic dystrophy were compared to the normal data. The subjects with myotonic dystrophy were significantly weaker in proximal upper limb muscles, quadriceps, tibialis anterior muscles and neck flexor muscles as well as power and lateral pinch grips. There was also significant reduction in forced expiratory volume at one second (FEV1) and forced vital capacity (FVC). Significant disability was seen in the myotonics in moving from sitting to standing and in fastening buttons. Over the two-year study period proximal upper limb and lower limb muscle strength, FVC and sit-to-stand ability declined significantly. Power grip declined but lateral pinch grip and FEV1 improved significantly. Button fastening ability improved significantly. Conclusion: The test developed was shown to be reliable and sensitive to the change in skeletal muscle manifestations in subjects with myotonic dystrophy who were shown to be significantly weaker than normal subjects.
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Aralova, Masha V., and Aleksandr A. Glukhov. "Clinical case of the treatment of venous leg ulcers in a patient with Sjogren disease." Vestnik of Experimental and Clinical Surgery 10, no. 4 (December 31, 2017): 315–19. http://dx.doi.org/10.18499/2070-478x-2017-10-4-315-319.
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Relevance. Trophic ulcers on the background of systemic diseases are characterized by long flow and cause greater difficulties in treatment due to the reduced regenerative capabilities of the body. As a result of taking hormones muscles and skin become atrophic changes. Thinning and dry skin are particularly susceptible to trauma. Trophic ulcers in systemic connective tissue diseases often have no specific signs. Indicate systemic disease can atypical localization (thighs, buttocks, torso, upper extremity, head, mucosa of the oral cavity) wound, long for ulcers, with no tendency to regenerate, the big help in diagnostics renders the identification of syndromes, evidence of systemic autoimmune lesions of organs and tissues (polyarthritis, polyserositis, damage internal organs).
Purpose: description of the case of the treatment of the patient with Sjogren disease.
Materials and methods. In this report a clinical case of treatment of ulcers of the tibia on the background of long-term hormonal therapy. Patient more than 20 years of suffering from Sjogren's disease. Diagnosis of Sjogren’s disease (chronic, moderate activity (II) expressed stage), dry keratoconjunctivitis, parenchymatous parotitis, xerostomia, Raynaud's Syndrome, trophic ulcer of left tibia and varicose disease of the lower extremities, 2.
Sjogren’s disease - a systemic autoimmune disease characterized by involvement of exocrine glands, mainly salivary and lacrimal, with the gradual development of secretory failure, combined with various systemic manifestations. Local treatment of trophic ulcers took place against the background therapy of the underlying disease. In the first stage for cleansing the surface of trophic ulcers used for the contact controlled cryodestruction was carried out hydropressing treatment of the wound. The result - on the 5th day the wound was completely cleansed from necrotic tissue. Further, the local treatment consisted in the creation of optimal conditions for regeneration. After 4 weeks the wound is almost completely epithelization.
Conclusions. When Sjogren's disease treatment of ulcerative defects of the skin of the lower extremities takes place on the background of long-term hormonal medications. An important condition for wound healing is to decrease the dose of hormones to the minimum necessary. In this clinical observation in local treatment was applied the technique of contact controlled cryodestruction of pathological tissues on the surface of the ulcer.
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Zhdan, V. M., I. V. Ivanitskii, O. I. Katerenchuk, and L. M. Shilkina. "Optimization of Therapy in Patients with Lower Back Pain Depending on the Presence of Benign Joint Hypermobility Syndrome." Ukraïnsʹkij žurnal medicini, bìologìï ta sportu 6, no. 1 (February 26, 2021): 78–83. http://dx.doi.org/10.26693/jmbs06.01.078.
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Lower back pain is pain that is localized in the lower back, buttocks, and sacroiliac area. Lower back pain is the most common reason for limiting physical activity in patients under 45 years of age. If we take into account both acute and chronic pain. Lower back pain is the most common complaint after colds and minor injuries. At the same time, even a thorough examination may not always reveal the cause of lower back pain. There is evidence of more frequent development of pain in the lower back on the background of benign joint hypermobility syndrome. Lower back pain in patients with benign joint hypermobility syndrome is usually assessed on the basis of visual analog scale data and is quite subjective. To assess the severity of changes in the lumbar spine, an ultrasound method can be used, one of the options of which is elastometry, which allows to determine the stiffness of the studied tissues, in particular to assess muscle tone. Muscle relaxants are commonly used for therapy, but it is usually not possible to assess their effect on actual muscle relaxation. The purpose of our study was to determine the effectiveness of using muscle relaxants in patients with lower back pain and benign joint hypermobility syndrome by performing elastometry of the iliopsoas muscles in these patients. Material and methods. To achieve this goal, we examined 65 patients with lower back pain aged 45.62±2.24 years, among them there were 32 women and 33 men. Patients with impaired limb sensitivity, muscle weakness, pelvic dysfunction, severe pain at night, fever and unmotivated weight loss, history of cancer, etc. were excluded from the study. To participate in the study, all patients underwent X-ray and ultrasound examination of the hip joints, in the presence of signs of osteoarthritis, patients were excluded from the study. Among the patients examined by the Bayton criteria, 26 patients were diagnosed with benign joint hypermobility syndrome, among them were 19 women and 7 men. We used shear wave elastometry to determine the stiffness of the distal lumbosacral muscle. A visual analog scale of pain with a gradation from 1 to 10 was used to determine the severity of the pain syndrome. After the diagnosis of lower back pain, patients were prescribed anti-inflammatory therapy in the form of 100 mg of diclofenac per day and tizanidine 4 mg 3 times a day for two weeks. After two weeks, the examination of patients was repeated. Results and discussion. In patients with lower back pain, the initial values of iliopsoas muscle stiffness were 11.85±1.37 kPa on the right and 12.1±1.45 kPa on the left, in patients with signs of benign joint hypermobility syndrome and lower back pain, the stiffness was iliopsoas muscle were 12.64±1.42 kPa on the right and 12.49±1.67 kPa on the left. No statistically significant difference was found between the studied groups. The severity of pain in the group of patients with lower back pain without benign joint hypermobility syndrome was 7.98±1.45, in patients with lower back pain and signs of benign joint hypermobility syndrome was 7.67±1.33 After 2 weeks of therapy in patients with lower back pain without signs of benign joint hypermobility syndrome, the lumbar-iliac muscle stiffness was 7.69±1.23 kPa on the right and 7.98±1.38 kPa on the left, the difference with the initial values was significant (p <0.05). In patients with signs of benign joint hypermobility syndrome and lower back pain after treatment, the lumbar-lumbar muscle stiffness was 10.29±1.97 kPa on the right and 10.89±1.75 kPa on the left. The difference was significant (p <0.05) both with the initial indicators and with the indicators of the group of patients with lower back pain without signs of benign joint hypermobility syndrome. The severity of pain on the visual analog scale in the group of patients with lower back pain without benign joint hypermobility syndrome after therapy was 3.49±1.98, in patients with lower back pain and signs of benign joint hypermobility syndrome was 5.21±1.43. The difference was significant (p <0.05) both with the initial indicators and with the indicators of the group of patients with lower back pain without signs of benign joint hypermobility syndrome and had a clear correlation with the indicators of lumbar-iliac muscle stiffness according to shear wave elastometry (r = 0.63, p = 0.032) Conclusion. Thus, the use of tizanidine in therapy can reduce the stiffness of the lumbosacral muscles of the back and reduce the intensity of pain in patients with lower back pain. At the same time, the patient's presence of benign joint hypermobility syndrome significantly reduced the degree of muscle relaxation and provoked greater resistance to pain therapy. The use of shear wave elastometry allows controling the quality of treatment in the dynamics. At the same time, there is a need to study the possibility of using this method of research in other spastic changes in the muscular system, which should be a prospect for further research
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Na, Jonathan Seung Doe, and Philip C. Dittmar. "Diabetic amyotrophy, not your typical back pain." BMJ Case Reports 13, no. 1 (January 2020): e231928. http://dx.doi.org/10.1136/bcr-2019-231928.
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A 49-year-old man presented to the hospital for spinal cord decompression surgery with left buttock and left leg pain. The patient described an acute burning pain radiating down from his left buttock to left lateral leg. He also noted a 13.6 kg weight loss in recent months. Physical examination showed decreased muscle bulk of the left thigh, decreased strength of the left hip, left knee flexors and extensors. Recent MRI spine showed mild canal narrowing and cord flattening in the lower thoracic spine. Serologic testing showed an elevated glucose of 17.9 mmol/L and haemoglobin A1c of 9.8%. Electromyography showed denervation of scattered muscles of the left knee flexors, hip flexors and adductors. In the setting of newly diagnosed diabetes mellitus, he was diagnosed with diabetic amyotrophy, started on insulin therapy, and his surgery was cancelled.
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Nascimento, Osvaldo J. M., Marcos R. G. de Freitas, Myrian D. Hahn, and Abelardo Q. C. Araújo. "Clinical and morphological study of calf enlargement following S-1 radiculopathy." Arquivos de Neuro-Psiquiatria 50, no. 3 (September 1992): 383–86. http://dx.doi.org/10.1590/s0004-282x1992000300021.
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Calf enlargement following sciatica is a rare condition. It is reported the case of a 28-year-old woman who complained of repeated episodes of lower back pain radiating into the left buttock and foot. One year after the beginning of her symptoms, she noticed enlargement of her left calf. X-ray studies disclosed L5-S1 disk degeneration. EMG showed muscle denervation with normal motor conduction velocity. Open biopsies of the gastrocnemius muscles were performed. The left gastrocnemius muscle showed hypertrophic type 2 fibers in comparison with the right gastrocnemius. Electron microscopy showed mildly increased number of mitochondria in these fibers. A satisfactory explanation for denervation hypertrophy has yet to be provided.
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Franco, Carlo D. "Posterior Approach to the Sciatic Nerve in Adults: Is Euclidean Geometry Still Necessary?" Anesthesiology 98, no. 3 (March 1, 2003): 723–28. http://dx.doi.org/10.1097/00000542-200303000-00022.
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Background Every approach to the sciatic nerve in the buttocks currently requires the identification of pelvic bone structures. The large size of the nerve and its constant trajectory suggest that a simplified approach is possible. Methods During the first stage, 24 sciatic nerves in adult cadavers were dissected. The most significant findings were, (1) caudal to the piriformis muscle the sciatic nerve runs parallel to the midline (intergluteal sulcus); (2) the distance between the nerve and the intergluteal sulcus during this course is approximately 10 cm in adults, regardless of their gender, size, or body habits. In the clinical stage 20 blocks were performed at 10 cm from the midline of the buttocks using a nerve stimulator and insulated needles. Results All blocks were accomplished in less than 8.5 min. The technique proved easy to teach. Residents performed most of the blocks. Incision time, measured from the time of the injection, was less than 29 min in all cases. There were 18 successful blocks and 2 failures. Conclusions Because of the intimate relationship of the sciatic nerve to the bony pelvis, the position of this nerve in the buttocks is constant. Caudal to the piriformis muscle the nerve runs vertically between the ischium and the greater trochanter. The location of this narrow passage, not the buttocks' size, determines the position of the nerve. While the size of the buttocks is variable among different individuals and in the same individual at different stages of adult life, the relationship of the sciatic nerve to the pelvis is constant throughout life. Using this relationship to our advantage, a sciatic block in adults can be accomplished at 10 cm lateral to the intergluteal sulcus without a need for identification of buried structures or line tracings.
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SLAMET, Samuel Susanto, Naoki TAKANO, and Tomohisa NAGASAO. "209105 Biomechanics Analysis of Pressure Ulcers Focusing on the Interface Strain between Bone and Muscle in the Buttock Model." Proceedings of Conference of Kanto Branch 2011.17 (2011): 291–92. http://dx.doi.org/10.1299/jsmekanto.2011.17.291.
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Huerto, Antonio P. S. "Piriformis Muscle Injection Using Ultrasonography and Motor Stimulation – Report of a Technique." September 2007 5;10, no. 9;5 (September 14, 2007): 687–90. http://dx.doi.org/10.36076/ppj.2007/10/687.
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The piriformis muscle syndrome has been described in the literature since 1947 and accounts for 6-8% of patients presenting with buttock pain, which may variably be associated with sciatica. Through the years, there have been attempts to find safe and effective ways of managing this condition, whether through conservative treatment or with the use of interventional procedures. Several authors have reported injection techniques using the following: nerve stimulation; fluoroscopy with electromyography; and fluoroscopy with muscle stimulation. We aim to describe an injection method which is effective, simple, reproducible, easily available, and safe. This is the first report on the combined use of ultrasonography and motor stimulation in performing piriformis muscle injection. Our technique offers advantages such as: markedly decreased radiation exposure for both patient and doctor; improved visualization of sciatic nerve and surrounding muscles; improved portability; the possibility of being performed as an office-based procedure; and allows for an accurate confirmation of pain in the piriformis muscle with stimulation. Key words: Piriformis muscle, ultrasound, motor stimulation
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Azghani, Mahmood Reza, Jalil Nazari, Nader Sozapoor, Mohamad Asghari Jafarabadi, and Ali E. Oskouei. "Myoelectric Activity of Individual Lumbar Erector Spinae Muscles Variation by Differing Seat Pan Depth." International Journal of Occupational and Environmental Medicine 10, no. 3 (July 1, 2019): 137–44. http://dx.doi.org/10.15171/ijoem.2019.1551.
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Background: The chair influences the position of the user in relation to his or her devices. Prolonged static sitting is a frequently mentioned risk factor for low back pain. Seat design, thus, plays an important role in the study of human sitting. Quantitative information is needed on what happens to body when one sits in chairs with different seat depth. Objective: To determine the myoelectric activity (EMG) of individual lumbar erector spinae muscles after sitting in chairs with different seat pan depth. Methods: EMG recordings were taken using surface electrodes placed on the lumbar erector spine muscles of 25 normal, volunteer subjects. EMG recordings for muscle activity were made while the study participants were in a comfortable position and performed the required tasks. The experiments investigated with 3 seat depths according to the 5th, 50th and 95th percentiles of the buttock popliteal length. The recorded EMG data were normalized to the maximal voluntary contraction. The mean EMG recording was calculated for each of the 3 chairs tested. A mixed model was used to assess the differences among the situations. Results: A significant (p<0.05) difference was observed between the mean EMG recordings for the 3 tested seat pan depths. EMG activity was higher in seats with the 5th and 95th percentiles compared with that for the seat with 50th percentile of buttock popliteal length depth. Conclusion: The seat pan depth used during a comfortable position has a significant effect on the level of myoelectric activity in the lumbar erector spinal muscles. The finding of this study may contribute to our understanding of the biomechanics of sitting.
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Kaplan, Hilton M., and Gerald E. Loeb. "Preventing Ischial Pressure Ulcers: I. Review of Neuromuscular Electrical Stimulation." Applied Bionics and Biomechanics 8, no. 3-4 (2011): 323–31. http://dx.doi.org/10.1155/2011/934910.
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Objective:Pressure ulcers (PUs) are common and debilitating wounds that arise when immobilized patients cannot shift their weight. Treatment is expensive and recurrence rates are high. Pathophysiological mechanisms include reduced bulk and perfusion of chronically atrophic muscles as well as prolonged occlusion of blood flow to soft tissues from lack of voluntary postural shifting of body weight. This has suggested that PUs might be prevented by reanimating the paralyzed muscles using neuromuscular electrical stimulation (NMES). A review of the published literature over the past 2 decades is detailed.Outcomes:Historically gluteus maximus (GM) has been an important target for NMES, but results have been difficult to interpret and suitable technology has been lacking.Conclusions:NMES of the buttock muscles appears to be valuable in terms of its trophic effects, improving vascularity and soft tissue bulk. It remains unclear, however, whether GM can actually achieve sufficient unloading of normal forces to permit blood flow in the capillary beds of the skin and muscle. Analysis of the skeletal biomechanics is required to assess the relative value of GM vs. hamstring (HS) hip extensors in this regard.
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Sozer, Sadri O., Francisco J. Agullo, and Humberto Palladino. "Split Gluteal Muscle Flap for Autoprosthesis Buttock Augmentation." Plastic and Reconstructive Surgery 129, no. 3 (March 2012): 766–76. http://dx.doi.org/10.1097/prs.0b013e3182402f2e.
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LI, SUJIAO, MIN YIN, LIN GAO, SHUN QI, and JUE WANG. "FINITE ELEMENT PREDICTION OF SUB-DERMAL TISSUE STRESSES OF THE BUTTOCKS DURING WHEELCHAIR PROPULSION." Journal of Mechanics in Medicine and Biology 16, no. 04 (June 2016): 1650058. http://dx.doi.org/10.1142/s0219519416500585.
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Pressure ulcers, involving sub-dermal tissue damage and originating in deep tissue injury (DTI), have attracted much attention of physicians and researchers for three decades. Finite element (FE) model is a very efficient tool to investigate internal stresses and strains in human body that induce pressure ulcers. However, there was scarce report available to explore stresses distribution in human buttocks during manual wheelchair propulsion. A three-dimensional (3D) comprehensive FE model, incorporating ischial tuberosities (ITs), muscle, fat, and custom-contoured cushion (CCC), was developed to investigate internal stress distribution in soft tissue of the buttocks. Based on the FE model, pressure distribution under ITs in static sitting and during different wheelchair propulsions is studied. Internal stresses in fat and muscle were about three times and five times higher than that on cushion surface in terms of static sitting and wheelchair propulsion. All peak pressures under wheelchair propulsion were higher than those of static sitting, and peak pressures went on increasing with increase of wheelchair movement speed. This method based on the comprehensive FE model allowed for the optimization of wheelchair seat cushion design.
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ALVES, Andrea Santos Rafael, Cristiane M. R. NASCIMENTO, Celso H. GRANATO, Helena Keiko SATO, Marina F. MORGATO, and Claudio S. PANNUTI. "Hepatitis B vaccine in infants: a randomized controlled trial comparing gluteal versus anterolateral thigh muscle administration." Revista do Instituto de Medicina Tropical de São Paulo 43, no. 3 (June 2001): 139–43. http://dx.doi.org/10.1590/s0036-46652001000300004.
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A significantly diminished antibody response to hepatitis B vaccine has been demonstrated in adults when the buttock is used as the injection site. However, in Brazil, the buttock continues to be recommended as site of injection for intramuscular administration of vaccines in infants. In this age group, there are no controlled studies evaluating the immunogenicity of the hepatitis B vaccine when administered at this site. In the present study, 258 infants were randomized to receive the hepatitis B vaccine either in the buttock (n = 123) or in the anterolateral thigh muscle (n = 135). The immunization schedule consisted of three doses of hepatitis B vaccine (Engerix B<FONT FACE="Symbol">â</FONT>, 10 mug) at 2, 4 and 9 months of age. There were no significant differences in the proportion of seroconversion (99.3% x 99.2%), or in the geometric mean titer of ELISA anti-HBs (1,862.1 x 1,229.0 mIU/mL) between the two groups. This study demonstrates that a satisfactory serological response can be obtained when the hepatitis B vaccine is administered intramuscularly into the buttock.
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Ghaleb, Ahmed H., Marc Brower, Gilbert Wong, Marc Huntoon, and Scott Ross. "Quadratus Femoris Muscle Injection for Chronic Left Hip/Buttock Pain." Anesthesiology 96, Sup 2 (September 2002): A930. http://dx.doi.org/10.1097/00000542-200209002-00930.
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Murovic, Judith A. "LOWER-EXTREMITY PERIPHERAL NERVE INJURIES." Neurosurgery 65, suppl_4 (October 1, 2009): A18—A23. http://dx.doi.org/10.1227/01.neu.0000339123.74649.be.
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Abstract OBJECTIVE With the use of data from 3 Louisiana State University Health Sciences Center (LSUHSC) publications, various parameters for buttock/thigh-level sciatic nerve and tibial and common peroneal divisions/nerve injuries were summarized, and outcomes were compared. METHODS Data from 806 buttock/thigh-level sciatic nerve and tibial and common peroneal division/nerve injury repairs were summarized. Lesion types, repair techniques, and outcomes were compared. RESULTS Acute lacerations undergoing suture repair were best for the thigh-then-buttock-level tibial (93%/73%) and then same-level common peroneal divisions (69%/30%); at the knee level, tibial outcomes (100%) were better than those for the common peroneal nerve (CPN) (84%). Secondary graft repairs for lacerations had good outcomes for the thigh-then-buttock-level tibial (80%/62%), followed by common peroneal divisions at the same levels (45%/24%). The knee/leg-level tibial nerve (94%) did better than the CPN (40%) here. In-continuity lesions with positive intraoperative nerve action potentials underwent neurolysis with better results for the thigh-then-buttock-level tibial division (95%/86%) than for same-level CPN (78%/69%). The knee/leg-level tibial nerve did better than the CPN (95%/93%). CONCLUSION Better recovery of buttock- and thigh-level tibial division/nerve occurs because: 1) the CPN is lateral and thus vulnerable to a more severe injury; 2) the tibial nerve is more elastic at impact owing to its singular-fixation site (the CPN has a dual fixation); 3) the tibial nerve has a better blood supply and regeneration; 4) the tibial nerve has a higher force-absorbing fascicle/connective tissue count than the CPN; and 5) the tibial nerve-innervated gastrocnemius soleus requires less reinnervation for functional contraction than deep peroneal branches, which innervate long, thin extensor muscles at multiple sites and require coordinated nerve input for effective contraction.
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Bleasdale-Barr, K. M., and C. J. Mathias. "Neck and other muscle pains in autonomic failure: their association with orthostatic hypotension." Journal of the Royal Society of Medicine 91, no. 7 (July 1998): 355–59. http://dx.doi.org/10.1177/014107689809100704.
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Neck pain in the suboccipital and paracervical region (‘coathanger' configuration) is often reported by patients with autonomic failure and orthostatic hypotension. The frequency of this pain, along with pains in the buttock and calf regions, was determined by questionnaire in two major groups with primary chronic autonomic failure—pure autonomic failure (PAF) and multiple system atrophy (MSA). Comparisons were made with Parkinson's disease, cerebellar degeneration and other disorders in which neurological symptoms overlap but in which there was neither autonomic failure nor orthostatic hypotension. Neck pain was present in 93% of patients with PAF, 51% of patients with MSA and 38–47% of the non-autonomic groups. Buttock pain was present in smaller but similar proportions (8–19%) of each group, like calf pain (23–37%). Neck pain in PAF and MSA differed from that in the other groups in being relieved by sitting or lying flat and in being associated with factors that lower blood pressure in these patients. Buttock pain was posturally related in PAF and MSA; for calf pain there was no difference between groups. Neck pain was related to the degree of orthostatic hypotension; in PAF patients, whose postural blood-pressure fall was greater than that in MSA, there was a greater frequency of neck pain.
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Qin, Yu-Ping, Shuang Zhang, Hai-Yan Liu, Yi-He Liu, You-Zhi Li, Xue Peng, Xiu Ma, Qi-Li Li, and Xuan Huang. "Path Loss Measurement and Channel Modeling with Muscular Tissue Characteristics." Open Biomedical Engineering Journal 11, no. 1 (January 20, 2017): 1–8. http://dx.doi.org/10.2174/1874120701711010001.
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Background: The galvanic coupling intra-body communication has low radiation and strong anti-interference ability, so it has many advantages in the wireless communication. Method: In order to analyze the effect of muscle tissue’s characteristics upon the communication channel, we selected the muscle of pig buttock as the experimental sample, and used it to study the attenuation property with the galvanic coupling intra-body communication channel along the parallel direction and the transverse direction relative to the muscular fibre line as well as on the surface of destroyed muscular fibre; the study frequency ranges from 1kHz to 10MHz.In the isotropic experiment, in order to destroy muscle’s fibre characteristics, we grinded the muscle four times, at least five minutes for each time. 0dbm sine-wave signal was input to measure the channel attenuation parameter S21 when the transmitter and the receiver were placed at different positions and different distances d1 and d2 (20mm, 40mm, 60mm), so as to analyze channel loss. Conclusion: Within the same frequency range and at the same communication distance, the maximum error of channel attenuation was 10dB; within the same frequency, as the communication distance was increased, the channel attenuation rose gradually, with 4dB increased every 20mm. The conclusion provides the basis for building the theoretical model in the future.
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Kim, Kyongsong, Toyohiko Isu, Juntaro Matsumoto, Koichi Miki, Daijiro Morimoto, Masanori Isobe, and Akio Morita. "Gluteus medius muscle decompression for buttock pain: a case-series analysis." Acta Neurochirurgica 161, no. 7 (May 3, 2019): 1397–401. http://dx.doi.org/10.1007/s00701-019-03923-3.
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Osanai, Toshihisa, Hiroaki Suzuki, Hiroaki Hiraga, Tamotsu Soma, and Takayuki Nojima. "Extra-articular diffuse-type tenosynovial giant cell tumor with benign histological features resulting in fatal pulmonary metastases." Journal of Orthopaedic Surgery 25, no. 1 (January 1, 2017): 230949901769032. http://dx.doi.org/10.1177/2309499017690323.
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Diffuse-type tenosynovial giant cell tumor (TS-GCT) is categorized as a locally aggressive but non-metastasizing neoplasm according to the WHO classification. Herein, we report an extremely rare case of a 41-year-old woman who developed multiple metastases from diffuse TS-GCT with benign histological features. The patient complained of a painful buttock mass and imaging studies revealed a soft tissue tumor of the buttock and multiple pulmonary nodules. The buttock tumor was excised and the final diagnosis was extra-articular diffuse-type TS-GCT. By video-assisted thoracic surgery, pulmonary nodules were pathologically identical to the primary tumor. Residual pulmonary nodules progressively grew, and she developed a muscle metastasis and a subcutis metastasis. She died of respiratory dysfunction due to multiple pulmonary metastases 1 year after primary surgery. Very few reports on histologically benign metastases from TS-GCT have been published, and the natural course of this rare condition remains unclarified. This rare case could provide important information for further clinical evaluation of this tumor.
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Olesen, Christian Gammelgaard, Mark de Zee, and John Rasmussen. "Missing links in pressure ulcer research—An interdisciplinary overview." Journal of Applied Physiology 108, no. 6 (June 2010): 1458–64. http://dx.doi.org/10.1152/japplphysiol.01006.2009.
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This paper surveys the literature on the etiology of sitting-acquired deep tissue pressure ulcers from three different viewpoints. The first viewpoint is identification of risk factors related to seated posture. The second viewpoint focuses on the external factors that can cause necrosis to human cells, such as ischemia and compression. The third viewpoint focuses on computational models of the human buttocks to calculate where stress concentrations occur. Each viewpoint contributes to the understanding of pressure ulcer etiology, but in combination they cover the multiple scales from cell to organism, and the combined insight can provide important information toward a full understanding of the phenomenon. It is concluded that the following three questions must be answered by future research. 1) Does compressive stress alone explain cell death, or is it necessary to consider the full three-dimensional strain tensor in the tissues? 2) How does the change in posture-induced load applied on the human buttocks change the stress distribution in the deep muscle tissue? 3) Is it possible to optimize the seated posture in a computational model to reduce the deeper tissue loads?
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Kaplan, Hilton M., Lucinda L. Baker, Salah Rubayi, and Gerald E. Loeb. "Preventing Ischial Pressure Ulcers: III. Clinical Pilot Study of Chronic Neuromuscular Electrical Stimulation." Applied Bionics and Biomechanics 8, no. 3-4 (2011): 345–59. http://dx.doi.org/10.1155/2011/536583.
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Objective:BIONs™ (BIOnic Neurons) are injectable, wireless microstimulators that make chronic BION Active Seating (BAS) possible for pressure ulcer prevention (PUP). Neuromuscular electrical stimulation (NMES) produces skeletal motion and activates trophic factors, counteracting three major etiological mechanisms leading to pressure ulcers (PUs): immobility, soft-tissue atrophy, and ischemia. Companion papers I and II reviewed prior experience with NMES for PUP, and analyzed the biomechanical considerations, respectively. This paper presents a treatment strategy derived from this analysis, and the clinical results of the first three cases.Methods:Two BIONs implanted (one on inferior gluteal nerve to gluteus maximus (GM), and other on sciatic nerve to hamstrings (HS)), in 3 spinal cord injured (SCI) subjects already undergoing gluteal rotation flaps for PUs. BAS using HS when seated, and BION Conditioning (BC) via GM+HS when non-weightbearing. Follow-up: 1 yr, including 6 mo. treatment window (interface pressure mapping; muscle perfusion scans; MRI, X-ray volume assessments).Results:Successfully implanted and activated both desired muscle groups, selectively, in all. No PU recurrences or wound complications. Two subjects completed protocol. Mean results: Interface: contact pressure −10%; maximum pressure −20%; peak pressure area −15%. Vascularity: GM +20%, HS +110%. Perfusion: GM +70%, HS +440%. Muscle volume: GM +14%, HS +31%. Buttock soft-tissue padding: +49%. 1 BION failed; 1 BION rotated under GM.Conclusions:Promising proof-of-concept data supporting the feasibility of implanted microstimulators to achieve sufficiently strong and selective activation of target muscles for PUP. Ultimate goal is prophylactic deployment through bilateral, nonsurgical injection of BIONs in chronically immobile patients.
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Metzger, Paul D., James R. Bailey, Robert D. Filler, Robert A. Waltz, Matthew T. Provencher, and Christopher B. Dewing. "Pectoralis Major Muscle Rupture Repair: Technique Using Unicortical Buttons." Arthroscopy Techniques 1, no. 1 (September 2012): e119-e125. http://dx.doi.org/10.1016/j.eats.2012.05.003.
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Agrawal, Nidhi, Sinan Altiner, Nicholas H. E. Mezitis, and Sina Helbig. "Silicone-Induced Granuloma after Injection for Cosmetic Purposes: A Rare Entity of Calcitriol-Mediated Hypercalcemia." Case Reports in Medicine 2013 (2013): 1–3. http://dx.doi.org/10.1155/2013/807292.
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Hypercalcemia is often a clue to the presence of unsuspected illness. We present an interesting case of an HIV-positive transgender female with a rare cause of silicone-induced granulomatous hypercalcemia. Although there have been a few case reports of silicone injections in dialysis patients causing hypercalcemia, this metabolic derangement secondary to silicone granulomas continues to be a unique entity with an unclear pathophysiology. We present a 45-year-old transgender HIV-positive female, with extensive silicone injections who presented with symptomatic hypercalcemia. Workup for malignancy and hyperparathyroidism was negative. 1,25-Dihydroxyvitamin D level and 24-hour urine calcium level were elevated. CT scan showed extensive high-density reticulonodular densities in the buttocks and gluteal muscle fascia extending upwards to the lumbar region, along with prominent external iliac and inguinal lymph nodes. Nuclear imaging showed diffuse heterogeneity and increased uptake in the buttocks, most consistent with granuloma calcifications, and an inguinal lymph node biopsy confirmed a foreign body giant cell reaction. The patient was started on prednisone and this resulted in decrease in serum and urinary calcium levels. Physicians should have a high index of suspicion for silicone-induced hypercalcemia considering the growing prevalence of body contour enhancement with injections, implants, and fillers using this material.
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Nakamatsu, Yuta, Tomoaki Fukui, Keisuke Oe, Shinya Hayashi, Tomoyuki Matsumoto, Takehiko Matsushita, Ryosuke Kuroda, and Takahiro Niikura. "Surgically Treated Nonunion following Ischial Tuberosity Avulsion Fracture of a 14-Year-Old Athlete." Case Reports in Orthopedics 2020 (June 15, 2020): 1–5. http://dx.doi.org/10.1155/2020/8531648.
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A 14-year-old girl experienced acute left buttock pain during a sprint. At the local hospital, she was diagnosed with an avulsion fracture of the left ischial tuberosity. She was kept for observation for about 10 months; however, the buttock pain persisted, and the bone fragments did not unite. She was referred to our hospital approximately 11 months after the injury. Plain radiography revealed an increased transposition of the bone fragment, from 12 mm immediately after the injury to 23 mm. Twelve months after the injury, she underwent osteosynthesis using two cannulated cancellous screws and three suture anchors. Following postoperative rehabilitation, the power in her left hamstring recovered, and she was able to run at full speed and returned to athletics 9 months after the surgery. The operative indications for avulsion fractures of the ischial tuberosity are unclear. Careful follow-up is required as the rate of nonunion after conservative treatment tends to be high. This needs to be identified in order to provide timely treatment that allows for early return to sport. Although she had significant chronic pain and muscle weakness, the surgery successfully treated the fracture, and her muscle power recovered, leading to her return to sports.
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Then, C., and G. Silber. "IN VIVO MECHANICAL CHARACTERISATION OF HUMAN BUTTOCK FAT AND MUSCLE USING INVERSE FEM." Journal of Biomechanics 41 (July 2008): S31. http://dx.doi.org/10.1016/s0021-9290(08)70031-9.
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Yahya, Mohd Shahir, Thiyagu Palaniandy, Noor Yasmin Zainun, and Musli Mohammad. "Development of Malaysian Primary School Children Anthropometrics Data for Designing School Furniture Parameters." Applied Mechanics and Materials 465-466 (December 2013): 1191–95. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.1191.
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This paper explains the measurement of anthropometricdimensions ofprimary school children and investigation ofrisk factors associated with musculoskeletal disorders (MSDs) among primary school children. A total of 266 students within three different schools were participated in anthropometric data measurements and questionnaire survey of the MSDs prevelance complain among them. Ten anthropometric measurements (Stature, Sitting height, Sitting shoulder height, Popliteal height, Hip breadth, Elbow seat height, Buttock-popliteal length, Buttock-knee length, Thigh clearance and Weight) were used. Martin type anthropometer set, height scale and weighing scale were used as a direct measurement method for the data collection on this study. Musculoskeletal symptoms were recorded using Modified Nordic Body Map Questionnaires. In addition Rapid Upper Limb Assessment (RULA) was used to assess the awkward posture of the school children for both designs. The results of the proposed furniture shows a better RULA final score for each group of muscles which give a score ranging from only 1 to 2 (Acceptable Posture) compared to the existing furniture that need further investigation. This anthropometrics data is very useful to the furniture manufacturer in designing school furniture in order to reduce the mismatch between furniture designed and Malaysian primary school children.
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Baggett, Mary Caitlin, and Diane Nykamp. "Statin-Associated Bilateral Foot Myopathy." Journal of Pharmacy Practice 33, no. 6 (June 27, 2019): 899–902. http://dx.doi.org/10.1177/0897190019857851.
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Objective: To report a case of statin-induced bilateral foot myopathy that resulted from 2 different statins. Case Summary: A 44-year-old Caucasian male with a history of ventricular fibrillation cardiac arrest, hyperlipidemia, and coronary artery disease experienced bilateral foot pain, weakness, and soreness while taking atorvastatin 20 mg daily. The pain subsided within weeks of discontinuing atorvastatin but returned years later after the initiation of rosuvastatin. The Naranjo probability scale indicates that this is a definite association between bilateral foot myopathy and statin use. Discussion: There is an association with statin use and lowering cardiovascular risk in patients with dyslipidemia and cardiovascular disease. However, statin metabolites can accumulate in the myocytes of muscle groups to cause a common side effect of myopathy. Statin myopathy typically occurs in large, bilateral, or proximal muscle groups, such as the thighs, back, calves, or buttocks. This patient was unusual in that his muscle symptoms only occurred in his feet and was severe enough to affect his ambulation. Conclusion: Stain-associated muscle symptoms have been reported to lessen medication adherence. There is also a risk with muscle symptoms that the patient could develop rhabdomyolysis, a rare but serious condition. Recognizing statin-associated muscle symptoms even in uncommon locations is important, so that alternative lipid-lowering strategies can be implemented to lower cardiovascular risk.
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Finsterer, Josef, and Marlies Frank. "Low-Glycemic-Index Diet Relieving Migraine but Inducing Muscle Cramps." Journal of Neurosciences in Rural Practice 10, no. 03 (July 2019): 552–54. http://dx.doi.org/10.1055/s-0039-1698034.
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AbstractLow-glycemic-index diet (LGID) has been shown to exhibit a beneficial effect in patients with epilepsy, exercise-induced dyskinesia, writer's cramp, migraine, and in myopathic mice. A 57-year-old female with classical migraine with and without aura since 14 years of age and a frequency of 8 to 12 attacks per month experienced some relief using a nasal spray of zolmitriptan since 10 years. Occasionally, she developed a status migrainosus lasting up to 5 days. At the age of 57 years, she started an LGID and recognized a significant decline of frequency and intensity of her migraine attacks but also of other abnormalities shortly after starting the diet. After 8 weeks on the LGID muscle cramps of the left calve, which radiated to the thighs, buttocks, and from there to the right leg, accompanied by fasciculations developed. The slight modification of the LGID, naproxen, and novaminsulfon relieved the cramps. LGID may have a beneficial effect on classical migraine but may induce muscle cramps, which require modification of the LGID.
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Xue, Yan-Li, Hong-Jun Song, Zhong-Ling Qiu, and Quan-Yong Luo. "Large Thigh and Buttock Muscle Metastases as the Initial Manifestation of Follicular Thyroid Cancer." Clinical Nuclear Medicine 39, no. 4 (April 2014): 363–64. http://dx.doi.org/10.1097/rlu.0b013e3182a75589.
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Siefert, Alexander, Steffen Pankoke, and Ralph Blüthner. "Development of a Detailed Buttock and Thigh Muscle Model for the Dynamic Occupant Model CASIMIR." SAE International Journal of Passenger Cars - Mechanical Systems 1, no. 1 (June 17, 2008): 1085–93. http://dx.doi.org/10.4271/2008-01-1864.
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Kim, Kyongsong, Toyohiko Isu, Yasuhiro Chiba, Naotaka Iwamoto, Daijiro Morimoto, and Masanori Isobe. "Decompression of the gluteus medius muscle as a new treatment for buttock pain: technical note." European Spine Journal 25, no. 4 (February 19, 2016): 1282–88. http://dx.doi.org/10.1007/s00586-016-4440-5.
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Gonzalez, Peter. "Confirmation of Needle Placement Within the Piriformis Muscle of a Cadaveric Specimen Using Anatomic Landmarks and Fluoroscopic Guidance." Pain Physician 3;11, no. 5;3 (May 14, 2008): 327–31. http://dx.doi.org/10.36076/ppj.2008/11/327.
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Of patients presenting to pain clinics, complaints are of low back or buttock pain with or without radicular leg symptoms is one of the most common. Piriformis syndrome may be a contributor in up to 8% of these patients. The mainstay of treatment is conservative management with physical therapy, anti-inflammatory medications, muscle relaxants, and correction of biomechanical abnormalities. However, in recalcitrant cases, a piriformis injection of anesthetic and/or corticosteroids may be considered. Because of its small size, proximity to neurovascular structures, and deep location, the piriformis muscle is often injected with the use of commuted tomography (CT), magnetic resonance imaging (MRI), ultrasound (US), fluoroscopy, electrical stimulators, or electromyography (EMG). Numerous techniques have been proposed using one or a combination of the above modalities. However, application of these techniques is limited by unavailability of CT, MRI, and EMG equipment as well as a paucity of trained physicians in US-guided procedures in many pain treatment centers throughout the United States. Fluoroscopy, however, is more widely available in this setting. This study utilized a cadaveric specimen to confirm proper needle placement for piriformis or peri-sciatic injection utilizing the previously documented landmarks for fluoroscopic guidance as described by Betts. An anteroposterior of the pelvis with inclusion of the acetabular region of the hip and the inferior aspect of the sacroiliac joint was obtained. The most superior-lateral aspect of the acetabulum and the inferior aspect of the sacroiliac joint were identified. A marker was placed one-third of the distance from the acetabular location to the inferior sacroiliac joint, indicating the target location. A 22-gauge, 3.5-inch spinal needle was directed through the gluteal muscles to the target location using intermittent fluoroscopic guidance. The posterior ileum was contacted and the needle was withdrawn 1 –2 mm. This approach found the needle within the piriformis muscle belly 2 –3 cm lateral to sciatic nerve. The present study was the first study, to our knowledge, that has confirmed the intramuscular position of the needle within the piriformis muscle of a cadaveric specimen using these anatomic landmarks and fluoroscopic guidance. Key words: piriformis syndrome, back pain, fluoroscopy, sciatica
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Zarzycki, Marcin Zygmunt, Stanisław Słyk, Szymon Price, and Magdalena Flaga-Łuczkiewicz. "Men’s Muscularity Image—The Role among Polish Young Population." Men and Masculinities 22, no. 2 (July 13, 2018): 404–11. http://dx.doi.org/10.1177/1097184x18774112.
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For many young men, enhancing their attractiveness as perceived by the opposite sex could be a potential reason for beginning physical activity. The aim of the study was to assess how women perceive male muscularity and how it could affect social relations between sexes. The intention was also to compare this assessment with the male view of the issue. An anonymous survey was conducted in electronic form and shared to Polish students. The questionnaire was completed by 5,190 respondents (4,043 women and 1,147 men). Women preferred a less muscular body than men. All muscle groups apart from the buttocks were also rated as more important by men than by women. The social role of muscularity, for example, in forming relationships with women was exaggerated by men. Men’s perception of their muscularity is not coherent with the way females perceive it.
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Loerakker, S., L. R. Solis, D. L. Bader, F. P. T. Baaijens, V. K. Mushahwar, and C. W. J. Oomens. "How does muscle stiffness affect the internal deformations within the soft tissue layers of the buttocks under constant loading?" Computer Methods in Biomechanics and Biomedical Engineering 16, no. 5 (May 2013): 520–29. http://dx.doi.org/10.1080/10255842.2011.627682.
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