Varus Stress Test for Lateral Collateral Ligament (LCL) Injuries and the Posterolateral Complex The Varus or Adduction Stress test is designed to stress the lateral collateral ligament. In the 0° position, the test stresses the whole Posterolateral complex (PLC) which is composed of the lateral (fibular) collateral ligament, the arcuate ligament, the popliteofibular ligament, posterior third of the lateral capsule and the fabellofibular ligament (when a fabella is present). In 20° flexion, the L

VARUS INSTABILITY STRESS TEST FOR TEARS OF THE LATERAL ULNAR COLLATERAL LIGAMENT The elbow joint is very similar to the knee joint. While both joints are hinge joints (when we look at the humeroulnar joint - the radiohumeral joint is a ball-and-socket joint that is restricted by the humeroulnar's shape), they are both stabilized by collateral ligaments. In order to test the lateral ulnar collateral ligament, you are performing the varus instability stress test, similar to the one of the knee. No