Abstract
The gait of five patients with unilateral hip ankylosis was analyzed both before and after operation (total hip arthroplasty) in terms of distribution of stance phase rate (stance phase/gait cycle), step length, stride width, and foot angle. After operation, stride width and foot angle significantly improved. Step length was shortened with the decrease of gait speed. There was no significant change in the stance phase rate. Gait functions that do not depend on the knee, pelvis, and the ankle were achieved after total hip arthroplasty.
