Discussion of Gamekeeper thumb
- Gamekeeper thumb consists of an acute or chronic injury to the ulnar collateral ligament of the thumb metacarpophalangeal joint.
- It was first observed in Scottish gamekeepers, who suffered repeated stress injury to the ulnar collateral ligament of their thumb metacarpophalangeal joints because they used their thumbs as a focal point to snap the neck of a rabbit.
- The injury can be seen in skiers (skier pole injury, skier thumb) or in break-dancers (break-dancer thumb).
- Along with injury to the ulnar collateral ligament, a small chip of bone can be avulsed off the proximal phalanx of the thumb.
- Treatment of complete but nondislocated rupture is conservative management.
- A related injury is the Stener lesion, in which there is a complete rupture of the ulnar collateral ligament, with the ligament becoming folded over and displaced superficially to the adductor pollicis aponeurosis.
- Ligament healing is hampered by the interposition of the adductor pollicis muscle between the proximal and distal stumps. Therefore, the generally accepted treatment is rapid surgical repair.
- If not properly recognized and treated, the Stener lesion leads to permanent instability of the MCP joint, requiring secondary plastic surgery of the ligament.
 Imaging Findings for Gamekeeper thumb
 See Also
 External Links
 References for Gamekeeper thumb
- Patrick Lee, Tim B. Hunter, and Mihra Taljanovic. Musculoskeletal Colloquialisms: How Did We Come Up with These Names?. RadioGraphics 2004 24: 1009-1027.
- BI O'Callaghan, G Kohut, and HM Hoogewoud. Gamekeeper thumb: identification of the Stener lesion with US. Radiology 1994 192: 477-480.