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Torn lateral collateral ligament

Torn lateral collateral ligament

Overview

A torn (LCL), is an injury to the lateral collateral ligament, a ligament extending from the top-outside surface of the fibula to the bottom-outside surface of the femur. The ligament prevents the knee joint from side-to-side (lateral) instability.

Update Date 6/29/2012

Updated by: C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.