Journal of Rehabilitation Research & Development (JRRD)

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Volume 49 Number 9, 2012
   Pages 1321 — 1330

Abstract — Transtibial prosthetic suspension: Less pistoning versus easy donning and doffing

Hossein Gholizadeh, MEngSc;1* Noor Azuan Abu Osman, PhD;1 Arezoo Eshraghi, MSc;1 Sadeeq Ali, BSc;1 Stefan Karl Sævarsson, MSc;2 Wan Abu Bakar Wan Abas, PhD;1 Gholam Hossein Pirouzi, BSc1

1Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia; 2Department of Biomedical Engineering, University of Calgary, Calgary, Canada

Abstract — 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.

Key words: amputation, gait, Iceross, lower-limb amputation, motion analysis, pistoning, satisfaction, suction, suspension, transtibial prosthesis.


View HTML  ¦  View PDF  ¦  Contents Vol. 49, No. 9
This article and any supplementary material should be cited as follows:
Gholizadeh H, Abu Osman NA, Eshraghi A, Ali S, Sævarsson SK, Wan Abas WA, Pirouzi GH. Transtibial prosthetic suspension: Less pistoning versus easy donning and doffing. J Rehabil Res Dev. 2012;49(9):1321–30.
http://dx.doi.org/10.1682/JRRD.2011.11.0221
ResearcherID: Hossein Gholizadeh, MEngSc: G-4838-2012; Noor A. Abu Osman, PhD: B-9265-2010; Arezoo Eshraghi, PhD: A-4405-2011
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