Snapping of the medial hamstrings is a rare condition, with few cases reported throughout the literature. The snapping sensation reportedly occurs when a hamstring tendon passes over the medial tibial condyle, a muscle belly, or another tendon. The semitendinosus tendon is frequently involved, but concomitant involvement of the semitendinosus and gracilis tendons has also been described. Althou...

The purpose of this study was to evaluate the inter-hamstring position (medial to lateral intertendinous position) of the tibial nerve within the popliteal fossa. A descriptive cadaver model study was performed to permit controlled and direct measures of the tibial nerve. Fourteen embalmed lower extremities (8 left, 6 right) from nine cadavers (4 males, 5 females; 84.3 +/- 10.7 years of age) we...

+MacLeod, T D; Snyder-Mackler, L; Axe, M J; Buchanan, T S + Center for Biomedical Engineering Research, University of Delaware, DE [email protected] ABSTRACT INTRODUCTION: Anterior cruciate ligament (ACL) reconstruction is commonly performed with a cadaveric allograft (ALLO) or a hamstring semitendinosus-gracilis (STG) autograft. Knee flexor strength deficits following STG reconstruction are a g...

BACKGROUND Although surgical repair has been reported to provide improved outcomes compared with nonoperative treatment in the management of complete proximal hamstring origin avulsions, no intact or avulsion repair biomechanical data exist to support various repair strategies or guide postoperative rehabilitation. PURPOSE To compare failure load among 4 proximal hamstring tendon conditions: ...

OBJECTIVES To seek evidence of the danger molecule, high-mobility group protein B1 (HMGB1) expression in human tendinopathy and thereafter, to explore mechanisms where HMGB1 may regulate inflammatory mediators and matrix regulation in human tendinopathy. METHODS Torn supraspinatus tendon (established pathology) and matched intact subscapularis tendon (representing 'early pathology') biopsies ...

INTRODUCTION Preoperative identification of patients with inadequate hamstring grafts for anterior cruciate ligament reconstruction is still a subject of interest. PURPOSE The purpose of this study was to determine whether the semitendinosus tendon length is adequate for four-strand graft harvested by common technique (without bone plug) and whether there is correlation of gracilis and semite...

OBJECTIVES To compare bone-patellar tendon-bone autografts with hamstring autografts for reconstruction of the anterior cruciate ligament. DATA SOURCES Medline, WebSPIRS, Science Citation Index, Current Contents databases, and Cochrane Central Register of Controlled Trials. Review methods All randomised controlled trials reporting one or more outcome related to stability (instrumented measure...

background :disruption of anterior cruciate ligament (acl) is a common ligamentous injury of the knee. the choice of graft for (acl) reconstruction remains controversial. this prospective, randomized clinical trial aimed to compare clinical results of bone-patellar tendon-bone (bptb) grafts and four-strand semitendinosus-gracilis (st) grafts for acl reconstruction over a 3-year follow-up interv...

A paucity of literature exists on quadriceps tendon reruptures. Failed quadriceps tendon repair can cause significant morbidity and disability. Surgical management of quadriceps tendon rerupture can be challenging due to tissue degeneration, tendon retraction, muscle atrophy, and poor bone fixation. A lack of guidance in the literature exists on the appropriate surgical techniques for managing ...