Dynamic interface pressure distributions of two transtibial prosthetic socket concepts
Dynamic interface pressure distributions of two transtibial prosthetic socket concepts
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DOI：
10.1682/jrrd.2008.01.0015
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发表时间：
2009-01-01
影响因子：
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通讯作者：
Sexton, Sandra
中科院分区：
文献类型：
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作者：
Dumbleton, Tim;Buis, Arjan W. P.;Sexton, Sandra
在本研究中，我们通过压力图研究和比较了不用手和不用手的跨胫假肢系统的动态界面压力分布。在招募的 48 名单侧截肢者中，一半（n = 24）佩戴压力铸造假肢（IceCast Compact），另一半（n = 24）佩戴髌腱轴承设计的手工铸造承窝。我们通过四个 Tekscan F-Scan 接受腔传感器阵列测量了每个假肢接受腔内 90% 以上区域的动态压力分布。我们比较了套接字概念之间的接口压力。我们发现，两个干预（接受窝处方）组的肢体-接受腔界面处的动态压力分布相似。然而，两个插座概念之间的界面压力大小存在显着差异；免提插座中记录的接口压力高于手动概念中的接口压力。尽管接口压力存在差异，但受试者组之间对插座的满意度相似。本研究中使用的插座已日常使用至少 6 个月，没有出现残肢健康问题。
In this Study, we investigated and compared the dynamic interface pressure distribution of hands-off and hands-on transtibial prosthetic systems by means of pressure mapping. Of the 48 established unilateral amputees recruited, half (n = 24) had been wearing pressure-cast prostheses (IceCast Compact) and the other half (n = 24) had been wearing hand-cast sockets of the patellar tendon bearing design. We measured the dynamic pressure profile of more than 90% of the area within each prosthetic socket by means of four Tekscan F-Scan socket transducer arrays. We compared the interface pressure between socket concepts. We found that the distribution of dynamic pressure at the limb-socket interface was similar for the two intervention (socket prescription) groups. However, a significant difference was found in the magnitude of the interface pressure between the two socket concepts; the interface pressures recorded in the hands-off sockets were higher than those seen in the hands-on concept. Despite the differences in interface pressure, the level of satisfaction with the sockets was similar between subject groups. The sockets instrumented for this study had been in daily use for at least 6 months, with no residual-limb health problems.