An experimental study of the interface pressure profile during level walking of a new suspension system for lower limb amputees
An experimental study of the interface pressure profile during level walking of a new suspension system for lower limb amputees
复制标题
DOI：
10.1016/j.clinbiomech.2012.10.002
复制
发表时间：
2013-01-01
影响因子：
1.8
通讯作者：
Abas, Wan Abu Bakar Wan
中科院分区：
文献类型：
--
作者：
Eshraghi, Arezoo;Abu Osman, Noor Azuan;Abas, Wan Abu Bakar Wan
背景资料：在假肢装置内使用的不同悬挂系统可能会改变下肢截肢者中假肢接受腔内的压力分布。本研究的目的是比较一种新的磁悬浮系统与销/锁和密封在suspension systems.Methods的接口压力：12个单侧经胫骨截肢者参加了这项研究。受试者以自选的速度在水平人行道上行走。所得到的峰值压力与三种不同的悬挂系统记录使用F-插座transducers.Findings：有三个研究悬挂系统之间的显着统计差异。成对分析显示，在一个步态周期内，磁系统的平均峰值压力（kPa）低于销/锁系统的前部和后部（分别为89.89 vs. 79.26和47.22 vs. 26.01）。总体而言，平均峰值压力值与密封系统高于他们与新的磁锁和销/锁system.Interpretation：新的磁系统可能会减少在假肢接受腔内的压力相比，销/锁和密封系统在一个步态周期。这在步态的摆动阶段期间特别重要，并且与销/锁系统相比可以减少远端残肢处的疼痛和不适。(C)2012爱思唯尔有限公司保留所有权利。
Background: Different suspension systems that are used within prosthetic devices may alter the distribution of pressure inside the prosthetic socket in lower limb amputees. This study aimed to compare the interface pressure of a new magnetic suspension system with the pin/lock and Seal-In suspension systems.Methods: Twelve unilateral transtibial amputees participated in the study. The subjects walked on a level walkway at a self-selected speed. The resultant peak pressure with the three different suspension systems was recorded using F-socket transducers.Findings: There were significant statistical differences between the three studied suspension systems. Pair-wise analyses revealed that the mean peak pressure (kPa) was lower with the magnetic system than it was with the pin/lock system over the anterior and posterior aspects during one gait cycle (89.89 vs. 79.26 and 47.22 vs. 26.01, respectively). Overall, the average peak pressure values were higher with the Seal-In system than they were with the new magnetic lock and pin/lock system.Interpretation: The new magnetic system might reduce the pressure within the prosthetic socket in comparison to the pin/lock and Seal-In system during one gait cycle. This is particularly important during the swing phase of gait and may reduce the pain and discomfort at the distal residual limb in comparison to the pin/lock system. (C) 2012 Elsevier Ltd. All rights reserved.