Linked from
The 13 pages that link to Amputation, each with the reason it gives.
FrostbiteRelated: Extensive frostbite tissue death can require removal of nonviable tissue.
Phantom limbRelated: Phantom limbs commonly follow the loss of a limb through amputation.
Gunshot woundRelated: Irreparable damage or uncontrolled complications can require limb removal.
Terry FoxRelated: Fox ran with a prosthetic leg after his right leg was amputated above the knee.
MutilationBroader topic: It is the clearest form of mutilation involving the loss of a body part.