Orthopaedics Gamekeepers thumb is A Thumb metacarpophalangeal joint ulnar collateral ligament rupture B Thumb metacarpophalangeal joint radial collateral ligament rupture C Thumb interphalangeal joint ulnar collateral ligament rupture D Thumb interphalangeal joint radial collateral ligament rupture π‘ Explanation Gamekeepers thumb is β Correct Answer: A. Thumb metacarpophalangeal joint ulnar collateral ligament rupture