MR imaging of postoperative ligaments of the knee.

This article reviews the magnetic resonance (MR) appearance of the ligaments of the knee following surgical repair or reconstruction. The various operative techniques currently used to repair the anterior cruciate ligament, posterior cruciate ligament, and the medial collateral ligament are discussed followed by a description of the normal postoperative MR appearance of both the repair and donor sites. Finally, the MR appearance of various complications at both repair and donor sites is described.