Thumb Metacarpophalangeal Ulnar and Radial Collateral Ligament Injuries

Abstract

Thumb metacarpophalangeal collateral ligament injuries are common in athletes and occur via forced abduction or hyperextension. Management primarily depends on the grade of ligamentous injury and the presence of a Stener lesion or large avulsion fracture. Surgeons should consider the athlete's position, hand dominance, duration of season remaining, and goals. Shared decision making regarding timing of surgery is imperative. Acutely, primary ligamentous repair with or without augmentation is achievable. Chronic collateral ligament injuries are effectively treated with ligament reconstruction. Numerous surgical techniques have been described without 1 showing superiority. Postoperative rehabilitation protocols vary based on repair quality and sports-specific considerations.

Keywords: Collateral ligament injury in athlete; Gamekeeper’s thumb; Radial collateral ligament (RCL); Skier’s thumb; Thumb metacarpophalangeal joint injuries (MCP); Ulnar collateral ligament (UCL).