#####  Thumb Ulnar Collateral Ligament (UCL) Injury 

[Hand & Wrist](https://osshealth.com/video?specialty=hand-wrist) |

[Hand & Wrist Treatments](https://osshealth.com/video?treatment=hand-wrist) 

This condition, also called skier's thumb, is an acute sprain or tear of the ulnar collateral ligament (UCL) on the ulnar side of the metacarpal-phalangeal (MCP) joint of the thumb. A related condition, called gamekeeper's thumb, is a chronic injury that develops over time from repeated stretching of the UCL.

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