Posterolateral anatomical reconstruction restored varus but not rotational stability: A biomechanical study with cadavers.

Background And Aim: Lesions to the posterolateral corner (PLC) of the knee are rarely isolated injuries, and they are potentially devastating, leading to progressive chondral injury, with important functional impairment. The objectives of this biomechanical study were to evaluate angular deformation with two loads and considering four flexion angles of the knee, varus and external rotation and in three situations of integrity, reconstruction and injury of posterolateral knee structures.

Methods: The posterolateral structures of 10 cadaveric knees were submitted to three biomechanical assays: in the "intact condition", "injured", and "reconstructed".