Traumatic amputation by explosive blast, dynamite in this case.
An explosive blast causes a pattern of injury including primary blast lung, secondary fragment injury and traumatic amputation of limbs. Major traumatic amputation is rare in survivors of bomb blasts but common in those who die. The mechanism of such injury has not been previously determined. Patients who survived to reach medical care after blast injury were investigated to determine the anatomical level of amputation and the pattern of soft tissue damage. Joints were an infrequent site of amputation and the tibial tuberosity was a particularly frequent site of lower-limb severance. The accepted mechanism of traumatic amputation, avulsion by dynamic overpressure, is challenged.