Stump/socket pressure profiles of the pressure cast prosthetic socket
Stump/socket pressure profiles of the pressure cast prosthetic socket
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DOI：
10.1016/s0268-0033(02)00206-1
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发表时间：
2003-03-01
影响因子：
1.8
通讯作者：
Chong, SY
中科院分区：
文献类型：
--
作者：
Goh, JCH;Lee, PVS;Chong, SY
目标。目的是评估截肢者佩戴由压力铸造系统开发的套接器时残肢/套接器界面压力。五名单侧经胫截肢者戴着压力铸造的眼窝，以自己选择的速度行走。该套窝在残肢/套窝界面产生均匀分布的压力，与传统的认为压力随残肢不同组织的疼痛阈值成比例变化的观点不同。当实验对象将他的残肢放在压力室中时，这个插座就被制造出来了。当他采取正常站立姿势时，施加了压力。采用特制的应变式压力传感器测量压力分布。同时测量受试者站立和行走时的压力和步态参数。结果与结论。压力铸造技术能够提供舒适的配合插座。站立或步态时静水压力分布不明显。结果还表明，没有标准的压力分布的压力铸造插座观察到。这是预期的，因为没有对压铸插座进行校正。步态周期的10%、25%和50%时的压力分布与先前提出的压力分布无关。
Objective. The aim was to evaluate stump/socket interface pressure in amputees wearing a socket developed by a pressure casting system.Design. Five unilateral transtibial amputees wore a pressure cast socket and walked at a self-selected speed.Background. The socket produces equally distributed pressure at the stump/socket interface, deviating from the conventional belief that pressure varies in proportion to the pain threshold of different tissues in the stump.Methods. The socket was fabricated while the subject placed his stump in a pressure chamber. Pressure was applied while he adopted a normal standing position. A specially built strain gauged type pressure transducer was used for measuring pressure distribution. Pressure and gait parameters were measured simultaneously while the subjects were standing and walking.Results and conclusion. The pressure cast technique was able to provide comfortable fitting sockets. A hydrostatic pressure profile was not evident during standing or gait. Results also showed that no standard pressure profile for the pressure cast socket was observed. This was expected as no rectifications were done on the pressure cast socket. Pressure profiles at 10%, 25% and 50% of gait cycle did not correlate with the pressure profiles previously proposed.