Leg, Arm and Hand Pain
Thumb Ulnar Collateral Ligament (UCL) Injury
About This Condition
Also known as skier's thumb, this condition is an acute sprain or tear of the UCL on the ulnar side of the metacarpal-phalangeal (MCP) joint of the thumb. The injury can cause pain and a feeling of instability in the thumb and can limit movements such as squeezing and gripping.