Objectives:Hamstring injuries commonly cause pain, weakness and functional limitations. While most hamstring injuries involve the musculotendinous junction or muscle belly, proximal hamstring tendon avulsions are a subset of hamstring injuries that are frequently more debilitating. Nonoperative treatment has demonstrated poor outcomes, thus surgical repair has become the mainstay. Open surgical repair has been the standard, but improved endoscopic techniques have enabled proximal hamstring fixation with decreased risk of infection and numbness, without the morbidity of a large, posterior incision. Prior anatomic studies described relevant anatomy near the proximal hamstring origin at the ischial tuberosity in the setting of an open repair, but literature describing pertinent anatomy during endoscopic repair is sparse. This cadaveric study enhances knowledge and safety of endoscopic proximal hamstring repair by describing pertinent anatomy surrounding four commonly used endoscopic portals.
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