label: Elbow lateral collateral ligament tear
label_lc: elbow lateral collateral ligament tear
description: "An injury to the lateral collateral ligament (LCL) of the elbow. The LCL is a complex capsuloligamentous structure critical in stabilizing the ulnohumeral and radiocapitellar articulations. LCL injury can result in elbow instability, allowing the proximal radius and ulna to externally rotate away from the humerus as a supination stress is applied to the forearm."