Joint Moments During Downhill and Uphill Walking of a Person with Transfemoral Amputation with a Hydraulic Articulating and a Rigid Prosthetic Ankle—A Case Study
Joint Moments During Downhill and Uphill Walking of a Person with Transfemoral Amputation with a Hydraulic Articulating and a Rigid Prosthetic Ankle—A Case Study
复制标题
使用液压关节和刚性假肢踝关节进行股骨截肢的人下坡和上坡行走时的关节力矩——案例研究
DOI：
10.1097/jpo.0000000000000171
复制
发表时间：
2018
影响因子：
0.6
通讯作者：
H. Schwameder
中科院分区：
文献类型：
--
作者：
N. Alexander;G. Strutzenberger;J. Kroell;C. Barnett;H. Schwameder
介绍人工踝关节设计的功能特点可能有助于经股（TF）截肢患者的斜行行走。当前病例研究的目的是分析刚性踝关节部件与液压关节踝关节部件对TF截肢患者在下坡、上坡和水平行走过程中的生物关节力矩的影响。材料与方法分析了一个单侧TF截肢的个体的步态，使用相同的假肢脚与刚性和液压踝关节组件，并与对照组的18个健全的参与者进行了比较。运动学和动力学数据以自选步行速度在倾斜度为−12°、−4°（下坡）、0°（水平）、+4°和+12°（上坡）的斜坡上记录。结果坡度对正常人和单侧TF截肢者下肢关节力矩的影响相似。通过更换假体踝关节组件改变踝关节运动的效果在残肢的髋关节处最为明显。与使用刚性踝关节组件相比，使用液压踝关节组件可使残肢的平均髋关节伸展和屈曲力矩分别降低92%和48%。结论：在斜坡行走过程中，使用液压关节与刚性踝关节组件减少了在单侧TF截肢患者的残肢髋关节处观察到的关节力矩。这表明TF截肢患者受益，因为踝关节功能的增加降低了髋关节产生力矩的要求，这可能导致能量消耗减少，随后步态更有效。
Introduction Functional characteristics of prosthetic ankle design may facilitate sloped walking for individuals with transfemoral (TF) amputation. The aim of the current case study was to analyze the effects of a rigid versus a hydraulically articulating ankle component on the biological joint moments of an individual with TF amputation during downhill, uphill, and level walking. Materials and Methods The gait of one individual with unilateral TF amputation, using the same prosthetic foot with rigid and hydraulic ankle components, was analyzed and compared with a control group of 18 able-bodied participants. Kinematic and kinetic data were recorded at self-selected walking speed on a sloped ramp with inclinations of −12°, −4° (downhill), 0° (level), +4°, and +12° (uphill). Results The slope influenced lower-limb joint moments similarly in both the able-bodied participants and the participant with unilateral TF amputation. The effect of altering ankle movement through exchanging prosthetic ankle componentry was most acutely seen at the hip joint of the residual limb. The use of a hydraulic ankle joint component resulted in decreased mean hip joint extension and flexion moments of up to 92% and 48%, respectively, in the residual limb when compared with the use of the rigid ankle joint component. Conclusions During sloped walking, the use of a hydraulically articulating versus rigid ankle joint component reduced the joint moments observed at the hip joint of the residual limb in an individual with unilateral TF amputation. This indicates a benefit for persons with TF amputation as the increased ankle function reduces the moment producing requirements of the hip joint, which may result in decreased energy consumption and subsequently a more efficient gait.
DOI：
10.1016/j.clinbiomech.2011.11.011
发表时间：
2012-06
期刊：
Clinical biomechanics (Bristol, Avon)
影响因子：
--
作者：
Kaufman KR;Frittoli S;Frigo CA
通讯作者：
Frigo CA
双腿在上坡和下坡行走时的机械功。
影响因子：
2.4
作者：
Franz JR;Lyddon NE;Kram R
通讯作者：
Kram R
影响因子：
2.1
作者：
Schaarschmidt, Margrit;Lipfert, Susanne W.;Seyfarth, Andre
通讯作者：
Seyfarth, Andre