Surgeons name amputations by the joint they spare
Below-knee and above-knee cuts dominate major lower-limb work, while Chopart, Lisfranc, and Syme label subtler foot and ankle levels. Rotationplasty even flips the foot so an ankle can act like a knee—engineering born from necessity.
Amputation removes a limb or other body part because of trauma, illness, or planned surgery. Surgeons may amputate to control pain or disease such as cancer or gangrene, sometimes preventively before those crises fully arrive. Congenital amputation is a different story: constricting bands can sever fetal limbs in the womb. Outside medicine, some legal systems still use judicial amputation as punishment, and war or terrorism can inflict or weaponize limb loss. The clinical taxonomy, though, is mostly about anatomy and function after the cut.
Lower-limb work splits into minor amputations—usually digits—and major ones, typically below or above the knee. Partial foot procedures carry eponyms such as Chopart, Lisfranc, and ray amputations. Ankle-level disarticulations include Pyrogoff, Boyd, and Syme operations. A rarer reconstructive option is the Van Nes rotation, or rotationplasty: the foot is rotated and reattached so the ankle can substitute for a missing knee joint. Upper-limb maps talk of trans-radial (below-elbow) and trans-humeral (above-elbow) levels; the Krukenberg procedure reshapes radius and ulna into a pincer stump. Hemipelvectomy removes an entire lower limb with part of the pelvis.
Not every named amputation is a trauma-bay emergency. Dental evulsion, circumcision, and other ritual or cultural removals appear in anthropological records; hemicorporectomy—amputation at the waist—marks an extreme oncologic or salvage edge. After major limb loss, gait research matters: a systematic review comparing transfemoral and transtibial amputation with able-bodied walking underscores how level of amputation reshapes spatiotemporal walking patterns. The vocabulary of Chopart and Syme is not pedantry; it encodes how much lever arm, soft tissue, and joint a person keeps for the prosthesis and life that follow.
Source: Amputation
