Jaegers S M, Arendzen J H, de Jongh H J
Department of Anatomy and Embryology, University of Groningen, The Netherlands.
Arch Phys Med Rehabil. 1995 Aug;76(8):736-43. doi: 10.1016/s0003-9993(95)80528-1.
The prosthetic gait of unilateral transfemoral amputees.
Case series.
Laboratory of Gait Analysis (GIGA-system of K-lab) in the Department of Rehabilitation of a university hospital.
Eleven men with transfemoral amputation (mean age 35.7 years) participated. The amputation was performed at least 2 years ago and was caused by trauma or osteosarcoma.
Stride parameters as well as the patterns of motion of the trunk, hip, and knee joint.
The amputees walked with a 29% lower vcomf than normal subjects. The amputees compensate the vrapid with their stride length rather than with their step rate. The amputees showed an asymmetrical walking pattern; the amputees stood a little longer on their intact leg than on their prosthetic leg. Four amputees showed an extreme lateral bending of the trunk toward the prosthetic side during the stance phase of the prosthetic leg. The rebound of the hip at the amputated side at heel strike was very small or absent. The intact knee was flexed at heel strike and remained in a flexed position during the entire stance phase.
The amount of asymmetry of the walking pattern is related to the stump length. The amputees with highly atrophied hip-stabilizing muscles walked with an extreme lateral bending of the trunk toward the prosthetic side. There is no correlation between stride width and lateral bending of the trunk. Amputees with a short and medium stump length showed a fast transition from hip extension to hip flexion.
单侧经股骨截肢者的假肢步态。
病例系列。
大学医院康复科的步态分析实验室（K-lab的GIGA系统）。
11名经股骨截肢男性（平均年龄35.7岁）参与。截肢至少在2年前进行，原因是创伤或骨肉瘤。
步幅参数以及躯干、髋部和膝关节的运动模式。
截肢者行走时的舒适速度比正常受试者低29%。截肢者通过步长而非步频来补偿快速行走速度。截肢者表现出不对称的行走模式；截肢者站立时健侧腿比假肢侧腿站立时间略长。4名截肢者在假肢腿支撑期躯干向假肢侧出现极度侧弯。足跟触地时截肢侧髋部的反弹非常小或没有。健侧膝关节在足跟触地时屈曲，并在整个支撑期保持屈曲位置。
行走模式的不对称程度与残肢长度有关。髋部稳定肌高度萎缩的截肢者行走时躯干向假肢侧极度侧弯。步幅宽度与躯干侧弯之间没有相关性。残肢长度短和中等的截肢者从髋关节伸展到屈曲的过渡很快。
