Article

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.
CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved.

Langue : ANGLAIS