Game keepers thumb is -

Ans. is 'a' i.e., Thumb metacarpophalangeal joint ulnar collateral ligament ruptureo Injury to the thumb metacarpophalangeal joint ulnar collateral ligament is commonly referred to as gamekeeper thumb orskierfs thumb, although the original "gamekeeper" description (Campbell, 1955) referred to an attritional ulnar collat- eral ligament injury.o Snow skiing accidents and falls on an outstretched hand with forceful radial and palmar abduction of the thumb are the usual causes.