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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Game Keeper's thumb is :
assistant
The correct answer is  Injury to the ulnar collateral ligament of the thumb metacarpophalangeal joint is commonly referred to as gamekeeper's thumb or skier's thumb.
Injury occurs by fall on hand with forceful radial and palmar adduction of thumb as seen in skiers.
It is the most common injury of MCP joint.