[The transmetacarpal oblique amputation of the index finger]

The main principles underlying amputation of the index finger are discussed. In two follow-up groups of patients the results have been compared of longest-possible finger stump versus transmetacarpal amputation of the second ray. Measurements were made of rough power (Vigorimeter) and pinch-grip power (Intrinsicmeter, Mannerfelt). Both measurements revealed higher power in the group with transmetacarpal amputation. Rehabilitation was likewise more rapid and favourable. For pinch grip the resected index finger is replaced by the midfinger without difficulty. Rough power is not impaired by narrowing of the hand. Transmetacarpal amputation of the second ray is thus a procedure to be advocated. The "small amputation of the index finger" now in more common use often provides merely a useless stump.