An injury to the lateral collateral ligament of the knee can be caused by a varus stress, lateral rotation of the knee when weight-bearing or when the LCL loses it’s elasticity caused by repeated stress [1][2][3][4].The LCL can be sprained (grade I), partially ruptured (grade II) or completely ruptured (grade III) [3]. Additional damage of the ACL, PCL and medial knee structures is possible when the lateral knee structures are injured [5](A2).