Effect of alignment changes on socket reaction moments during gait in transfemoral and knee-disarticulation prostheses: case series.
Effect of alignment changes on socket reaction moments during gait in transfemoral and knee-disarticulation prostheses: case series.
复制标题
DOI：
10.1016/j.jbiomech.2013.07.012
复制
发表时间：
2013-09-27
影响因子：
2.4
通讯作者：
Boone, David A.
中科院分区：
文献类型：
--
作者：
Kobayashi, Toshiki;Orendurff, Michael S.;Boone, David A.
下肢假肢的对准对于假肢的成功装配和佩戴者的使用至关重要。在行走时施加于残肢的承窝所产生的载荷被认为在经股和膝离断假肢中是不同的。本病例系列的目的是比较经股骨和膝关节离断假体之间的窝反应力矩，并研究对线变化对它们的影响。两名截肢者，一名使用经股骨假体，另一名使用膝关节离断假体，参与了这项研究。在9种选定的对线条件下行走时，使用Smart Pyramid™测量关节窝反作用力力矩;包括关节窝相对于足部的名义对线、6°角度对线不良（屈曲、伸展、外展和内收）和15 mm平移对线不良（前、后、内侧和外侧）。本研究发现，经股骨和膝关节离断假体之间的髋臼反力矩模式相似。在名义上对齐的条件下，在矢状面的伸展力矩和冠状面的内翻力矩占主导地位。该研究还表明，对线变化可能对经股骨或膝关节离断假体的承窝反力矩产生一致的影响。接受腔的伸展或向后平移导致伸展力矩增加，而接受腔的外展或侧向平移导致内翻力矩增加。窝反力矩可能作为有用的生物力学参数，以评估在经股骨或膝关节离断假体对线。
The alignment of a lower-limb prosthesis is critical to the successful prosthetic fitting and utilization by the wearer. Loads generated by the socket applied to the residual limb while walking are thought to be different in transfemoral and knee-disarticulation prostheses. The aim of this case series was to compare the socket reaction moments between transfemoral and knee-disarticulation prostheses and to investigate the effect of alignment changes on them. Two amputees, one with a transfemoral prosthesis and another with a knee-disarticulation prosthesis, participated in this study. A Smart Pyramid™ was used to measure socket reaction moments while walking under 9 selected alignment conditions; including nominally aligned, angle malalignments of 6° (flexion, extension, abduction and adduction) and translation malalignments of 15 mm (anterior, posterior, medial and lateral) of the socket relative to the foot. This study found that the pattern of the socket reaction moments was similar between transfemoral and knee-disarticulation prostheses. An extension moment in the sagittal plane and a varus moment in the coronal plane were dominant during stance under the nominally aligned condition. This study also demonstrated that alignment changes might have consistent effects on the socket reaction moments in transfemoral or knee-disarticulation prostheses. Extension or posterior translation of the socket resulted in increases in an extension moment, while abduction or lateral translation of the socket resulted in increases in a varus moment. The socket reaction moments may potentially serve as useful biomechanical parameters to evaluate alignment in transfemoral or knee-disarticulation prostheses.
登录
查看更多内容
影响因子：
2.2
作者：
Lee, Winson C. C.;Frossard, Laurent A.;Branemark, Rickard
通讯作者：
Branemark, Rickard
影响因子：
1.8
作者：
Lee, Winson C. C.;Doocey, Jacinta M.;Frossard, Laurent A.
通讯作者：
Frossard, Laurent A.
影响因子：
2.4
作者：
Dumas, R.;Cheze, L.;Frossard, L.
通讯作者：
Frossard, L.
DOI：
10.1682/jrrd.2011.08.0143
发表时间：
2012-01-01
影响因子：
--
作者：
Boone, David A.;Kobayashi, Toshiki;Zhang, Ming
通讯作者：
Zhang, Ming
影响因子：
1.8
作者：
Lee, Winson C. C.;Frossard, Laurent A.;Pearcy, Mark J.
通讯作者：
Pearcy, Mark J.