Pinzur M S, Cox W, Kaiser J, Morris T, Patwardhan A, Vrbos L
Department of Orthopaedic Surgery, Loyola University Medical Center, Maywood, IL 60153, USA.
J Rehabil Res Dev. 1995 Nov;32(4):373-7.
The prosthetic sockets of 14 independent persons with unilateral trans-tibial (BK) amputation were mounted on an adjustable alignment pylon. Vertical ground reaction forces were recorded in neutral prosthetic alignment and in 10 degrees of prosthetic socket varus, valgus, flexion, and extension. Stance phase time, peak vertical ground reaction force, and impulse were all found to be increased on the sound limb when compared to the amputated residual limb. Significant differences were found in stance phase time and peak vertical ground reaction force when comparing malaligned with neutrally aligned prosthetic limbs. Significant differences were also seen in impulse between neutrally aligned and malaligned prosthetic limbs. The results suggest that prosthetic malalignment in persons with trans-tibial amputation leads to increased loading of the contralateral limb.
14名单侧经胫骨（膝下）截肢的独立个体的假肢接受腔安装在一个可调节对线支具上。记录了在假肢中立对线以及假肢接受腔内翻、外翻、屈曲和伸展10度时的垂直地面反作用力。与截肢残肢相比，发现健侧肢体的站立相时间、垂直地面反作用力峰值和冲量均增加。比较对线不良与中立对线的假肢肢体时，发现站立相时间和垂直地面反作用力峰值存在显著差异。在中立对线和对线不良的假肢肢体之间的冲量也存在显著差异。结果表明，经胫骨截肢者的假肢对线不良会导致对侧肢体负荷增加。
