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Background: The authors describe the surgical technique and functional results of extensor mechanism reconstruction after major resections of soft-tissue tumors from the anterior compartment of the thigh.
Methods: Between 1983 and 2003, 78 patients with soft-tissue sarcomas of the anterior compartment of the thigh were operated on at the authors' institution. Sixteen patients with extensive resections of the quadriceps muscle and one patient with a complete resection of the femoral nerve underwent functional extensor mechanism reconstruction. Depending on the type of resection, one or more of the following muscles were used for reconstruction: the sartorius, biceps femoris, semitendinosus muscles. After two patients with a follow-up of less than 12 months were excluded, 15 patients were evaluated. The authors performed a retrospective analysis of these patients' medical records, with an emphasis on functional outcome.
Results: According to the Musculoskeletal Tumor Society score, functional results were estimated to be good to excellent in 13 patients and fair in two. Most patients had a satisfactory active range of motion, and muscle strength and functional results correlated with the extent of resection.
Conclusion: The authors recommend functional muscle transfer reconstruction after extensive resection of the quadriceps muscle or resection of the femoral nerve with one or more of the following muscles: the sartorius, the biceps femoris, and the semitendinosus muscles.
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http://dx.doi.org/10.1097/01.prs.0000256477.01388.de | DOI Listing |
Int J Gen Med
December 2024
School of Nursing, Suzhou Medical College of Soochow University, Suzhou, Jiangsu, 215006, People's Republic of China.
Background: Blood flow restriction training (BFRT) can produce effects similar to high-intensity exercise at lower intensities, making it a potentially more suitable method for older adults with sarcopenia. This study aims to determine the efficacy of the intervention on improving physical fitness in older adults with sarcopenia when blood flow restriction (BFR) and aerobic exercise (AE) are combined (BFR-AE) and to explore the related metabolic and signaling mechanisms.
Methods: This is a three-arm, parallel, randomized controlled trial.
Proc Natl Acad Sci U S A
January 2025
Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, United Kingdom.
Resilin, an elastomeric protein with remarkable physical properties that outperforms synthetic rubbers, is a near-ubiquitous feature of the power amplification mechanisms used by jumping insects. Catapult-like mechanisms, which incorporate elastic energy stores formed from a composite of stiff cuticle and resilin, are frequently used by insects to translate slow muscle contractions into rapid-release recoil movements. The precise role of resilin in these jumping mechanisms remains unclear, however.
View Article and Find Full Text PDFArthrosc Tech
November 2024
Department of Orthopaedics and Traumatology, Centro Traumatologico Ortopedico, University of Turin, Turin, Italy.
This article aims to present a comprehensive technical note detailing our preferred treatment approach for tibial tuberosity avulsion fractures in the adult and elderly populations, particularly in scenarios characterized by low tissue quality and limited bone stock. Existing literature on this fracture type is scarce, with many described techniques relying on optimal bone quality for effective screw fixation of the tibial tuberosity. Various methods for tibial tuberosity avulsion fixation include K-wires, cannulated screws, staples, tension bands, suture anchors, and in select cases, direct transosseous sutures.
View Article and Find Full Text PDFJBJS Case Connect
October 2024
Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN.
Case: A 67-year-old woman sustained a periprosthetic tibial tubercle avulsion fracture with extensor mechanism disruption. She underwent open reduction internal fixation (ORIF) with orthogonal mini-fragment plates applied in a tension band fashion with patellar tendon suture augmentation. Radiographs, range of motion, and patient-reported outcomes were completed over 1 year.
View Article and Find Full Text PDFTop Companion Anim Med
December 2024
OrtopediaVet Veterinary Clinic, Dr. Eloy Curuci and team. Volta Redonda Street, 670 - Campo Belo, São Paulo, State of São Paulo, Brazil, Zip code 04608-011.
Objectives: There is a lack of literature regarding the surgical management of high-grade patellar luxation in cats. Among the available options, corrective osteotomies are suitable for correcting severe bone deformities. Therefore, this study aimed to report on the surgical management of grade IV medial patellar luxation (MPL) through tibial corrective osteotomies in two cats.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!