Article

Poor suspension increases slippage of the residual limb inside the socket during
ambulation. The main purpose of this article is to evaluate the pistoning at the
prosthetic liner-socket interface during gait and assess patients' satisfaction
with two different liners. Two prostheses with seal-in and locking liners were
fabricated for each of the 10 subjects with transtibial amputation. The Vicon
motion system was used to measure the pistoning during gait. The subjects were
also asked to complete a Prosthesis Evaluation Questionnaire. The results
revealed higher pistoning inside the socket during gait with the locking liner
than with the seal-in liner (p < 0.05). The overall satisfaction with the locking
liner was higher (p < 0.05) because of the relative ease with which the patients
could don and doff the device. As such, pistoning may not be the main factor that
determines patients' overall satisfaction with the prosthesis and other factors
may also contribute to comfort and satisfaction with prostheses. The article also
verifies the feasibility of the Vicon motion system for measuring pistoning
during gait.

Langue : ANGLAIS