Houston Methodist. Leading Medicine

Elbow FAQ


What is the ulnar collateral ligament of the elbow? What does it do?


The ulnar collateral ligament (UCL) is the strongest and stiffest ligament crossing the elbow joint. It is located on the inside edge of the elbow.

Ligaments connect one bone to another. They are designed to keep the two bones from moving too far in one or more directions. Connecting the upper arm bone (humerus) to the inside bone of the forearm (ulna), the UCL is the main ligament protecting the elbow from angling too far out to the side.

*Disclaimer:* The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.
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