Energy cost of walking of amputees: the influence of level of amputation.

A comparison of selected gait parameters and the energy cost of prosthetic walking was made in seventy patients with unilateral traumatic and vascular amputations. Amputations above the knee, below the knee, and at the Syme's level were compared in both groups of amputees, and a control group of forty normal subjects also studied. In both groups of amputees performance was significantly better the lower the level of the amputation. When preservation of function is the chief concern, amputation should be performed at the lowest possible level.

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