[Rupture of the pes anserinus superficialis and partial rupture of the patellar ligament. Rare concomitant injures in complex knee injuries].

We present a rare case of combined knee joint lesions in a 25 year old patient. Besides the commonly reported injuries of the knee joint due to directly applied valgus force, forceful quadriceps muscle contraction, external rotation at flexed knee causing combined lesions such as rupture of the anterior cruciate ligament, rupture of the posterior cruciate ligament and rupture of the medial collateral ligament, a rare combination of the above mentioned lesions and a rupture of the lateral meniscus, an osteochondral fracture of the lateral femur condylus, a rupture of the medial patellofemoral retinacula as well as a complete rupture of the superficial pes anserinus and a partial rupture of the patellar ligament was encountered.