Clinical and Functional Outcomes at Least 2 Years After Hamstring Muscle Repair

This study is to evaluate functional outcomes of a new, intraoperative lateral positioning of the anchors on the tuber ischiadicum, in comparison to regular anatomical anchoring direct on top of the tuber ischiadicumafter hamstring muscle repair. This study is to quantify at least 2 years postoperative functional, biomechanical and clinical outcomes including side-to-side differences in muscle strength, unipedal balance, gait, jumping and squatting function, muscle activity, in patients treated by hamstring muscle repair.