Journal of Rehabilitation Research & Development (JRRD)

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Transfemoral sockets with vacuum-assisted suspension comparison of hip kinematics, socket position, contact pressure, and preference: Ischial containment versus brimless

Jason T. Kahle, MSMS, CPO, FAAOP; M. Jason
Highsmith, PT, DPT, PhD, CP, FAAOP

Nine people with transfemoral (above-knee) amputation tried two different socket types that both used a vacuum as the method of suspension. One type of socket had traditional high trim lines, which includes the perineum. The trim lines on the other type of socket were well below the perineum. X-ray was used to measure how these lower trim lines would affect the femur and the movement of the socket during weight and non-weight bearing. Skin pressure was also measured. Finally, all the subjects were asked which socket they preferred. The results showed no difference between the two sockets in the effect on the femur and socket movement. However, skin pressure was improved and all of the subjects preferred the socket with the shorter trim lines. The implications of this study were that vacuum suspension may assist in a more comfortable brim socket design for people with above-knee amputation.
http://dx.doi.org/10.1682/JRRD.2013.01.0003

Volume 50 Number 9, 2013
   Pages 1241 — 1252


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The article and any supplementary material should be cited as follows:
Kahle JT, Highsmith MJ. Transfemoral sockets with vacuum-assisted suspension comparison of hip kinematics, socket position, contact pressure, and preference: Ischial containment versus brimless. J Rehabil Res Dev. 2013; 50(9):1241–52.
http://dx.doi.org/10.1682/JRRD.2013.01.0003
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