The hamstring muscles frequently suffer injury during high-speed running, though the factors that make an individual more susceptible to injury remain poorly understood. The goals of this study were to measure the musculotendon dimensions of the biceps femoris long head (BFlh) muscle, the hamstring muscle injured most often, and to use computational models to assess the influence of variability...

Introduction: Anterior Cruciate Ligament (ACL) tear is the most common ligamentous injury to the knee joint. Two most commonly used grafts for reconstruction are Quadruple Hamstring tendons (QHT) and Bone Patellar Tendon Bone (BPTB) graft. Graft fixation techniques vary with different surgeons. Aim of this study was to compare the clinical outcome of reconstruction of ACL using QHT and BPTB gra...

The purpose of this study was to understand how stretch-related sensory feedback from an antagonist muscle affects agonist muscle output at different contraction levels in healthy adults. Ten young (25.3 ± 2.4 years), healthy subjects performed constant isometric knee flexion contractions (agonist) at 6 torque levels: 5%, 10%, 15%, 20%, 30%, and 40% of their maximal voluntary contraction. For h...

Background: Although several complications of proximal hamstring tendon ruptures have been reported in the literature, few studies comprehensively analyzed complication profile repair. Purpose: To identify overall rate following repair and to differentiate these into categories. Study Design: Systematic review; Level evidence, 4. Methods: Included this review were that examined surgical rupture...

PURPOSE To develop and evaluate an anatomic reconstruction procedure of the posterolateral and anteromedial bundles of the anterior cruciate ligament (ACL). TYPE OF STUDY Anatomic study and case series. METHODS The femoral attachment of the anteromedial and posterolateral bundles of the ACL was anatomically analyzed with 5 cadaveric knees. Using another 3 cadaveric knees, anatomic reconstru...

Tendon transfers pptay an important role in reconstructive foot and ankle surgery. Multiple methods for fixation of tendon to bone are used including suture of tendon to periosteum, suture into bone troughs, suture anchors, and passage through bone tunnels. With the increasing populatity of hamstring tendon anterior cruciate ligament reconstructions has come new fixation technology. Soft-tissue...

BACKGROUND Tendon-bone tunnel healing is crucial for long term success in anterior cruciate ligament (ACL) reconstruction. The periosteum contains osteochondral progenitor cells that can differentiate into osteoblasts and chondroblasts during tendon-bone healing. We developed a scaffold-free method using polymerized fibrin-coated dishes to make functional periosteal progenitor cell (PPC) sheets...

BACKGROUND Pain in the immediate post-operative period after anterior cruciate ligament (ACL) surgery, apart from an unpleasant experience for the patient, can act as a barrier for static quadriceps contractions and optimum execution of the initial rehabilitation protocol resulting in slow recovery and a later return to full function for a sportsperson. There is no report in the literature comp...