<prompt> Amputation is often not required in -Gas gangreneBuergersChronic osteomyelitisDiabetic gangrene  <response>: Amputation may, very rarely, be preferred in a case with a long-standing discharging sinus, especially if the sinus undergoes a malignant change.Amputation Amputation is a procedure where a part of the limb is removed through one or more bones.Disarticulation is a procedure where the limb is removed through a joint.Indications of amputationIndications of amputations may be absolute or relative :-A Absolute indicationsGas gangreneDiabetic gangreneIrreparable loss of blood supply due to trauma or diseasePeripheral vascular disease Burgers gangreneB Relative indicationsTraumaTumorsSevere loss of function of limbNerve injuriesCongenital anomaliesOverall most common cause of amputation is trauma injury to a limb. 