What is an ulnar collateral ligament injury?

Also known as: UCL injury, ulnar collateral ligament tear, UCL tear, Tommy John injuries.

The ulnar collateral ligament is the tissue that crosses the elbow, connecting the upper arm to the forearm. When this band of tissue gets sprained or torn, it’s known as an ulnar collateral ligament injury.

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Reviewed by: Annie L Casta, MD

This page was last updated on: 1/29/2019 3:21:13 PM