Loss of motion following knee ligament surgery is a common and potenti
ally serious complication. Loss of extension is most common following
anterior cruciate ligament reconstruction, and loss of flexion is most
common after posterior cruciate ligament reconstruction. The aetiolog
y of loss of motion is multifactorial acid includes impingement and ca
psulitis. The risk for loss of motion can be minimised by appropriate
preoperative, intraoperative and postoperative intervention. Managemen
t of loss of motion depends on the cause and length of time following
surgery.