Objectives: Rupture of the ulnar collateral ligament (UCL) is a frequent injury of the hand. When untreated, this injury may lead to decreased pinch strength, pain, instability, and osteoarthritis.

Bottom line: The oft-injured right-hander underwent internal brace surgery last April to repair his ulnar collateral ligament ...

such as dislocations or fractures. The ulnar collateral ligament (UCL) connects your upper arm bone (humerus) to the bone in your forearm (ulna), which helps stabilize the inner side of your elbow ...

The ECU tendon is vulnerable to instability when it contracts to stabilise the ulnar side of the wrist. The retaining structures are at particular risk of acute injury when the wrist is moving between ...

Nonoperative treatment of acute UCL injury (with or without a Stener lesion) frequently fails, leading to chronic pain, instability, and weakness, eventually prompting surgical intervention.

Bottom line: The right-hander was sent to New York to undergo further tests on Feb. 19, after the initial diagnosis and a possible ulnar collateral ligament injury, according to Boone.