Document Type
Article
Publication Date
1-1-2012
Abstract
Background: The interface pressure between the residual limb and prosthetic socket has a significant effect on an amputee's satisfaction and comfort. Liners provide a comfortable interface by adding a soft cushion between the residual limb and the socket. The Dermo and the Seal-In X5 liner are two new interface systems and, due to their relative infancy, very little are known about their effect on patient satisfaction. The aim of this study was to compare the interface pressure with these two liners and their effect on patient satisfaction. Methods: Nine unilateral transtibial amputees participated in the study. Two prostheses were fabricated for each amputee, one with the Seal-In liner and one with the Dermo liner. Interface pressure was measured at the anterior, posterior, medial and lateral regions during walking on the level ground. Each subject filled in a Prosthetic Evaluation Questionnaire (PEQ) regarding the satisfaction with the two liners. Findings The mean peak pressures with the Seal-In liner was 34.0 higher at the anterior, 24.0 higher at the posterior and 7.0 higher at the medial regions of the socket (P = 0.008, P = 0.046, P = 0.025) than it was with the Dermo Liner. There were no significant differences in the mean peak pressures between the two liners at the lateral regions. In addition, significant difference was found between the two liners both for satisfaction and problems (P < 0.05). Interpretation There was less interface pressure between the socket and the residual limb with the Dermo liner. The results indicated that the Dermo liner provides more comfort in the socket than the Seal-In liner.
Keywords
Amputee, Pressure, Prosthetic liner, Satisfaction, Transtibial prostheses, Clinical investigation, Interface pressure, Interface system, Patient satisfaction, Peak pressure, Prosthetic liners, Prosthetic sockets, Residual limb, Soft cushion, Transtibial amputees, Transtibial prosthesis, Pressure effects, Artificial limbs, article, biomechanics, clinical article, clinical assessment, computer interface, controlled study, female, human, male, priority journal, prosthesis, prosthetic evaluation questionnaire, questionnaire, walking, Amputation Stumps, Equipment Design, Equipment Failure Analysis, Humans, Knee Joint, Middle Aged, Orthotic Devices, Tibia. Treatment Outcome
Divisions
fac_eng
Publication Title
Clinical Biomechanics
Volume
27
Issue
9
Additional Information
Ali, Sadeeq Osman, Noor Azuan Abu Mortaza, Niyousha Eshraghi, Arezoo Gholizadeh, Hossein Wan Abas, Wan Abu Bakar Bin eng Comparative Study Controlled Clinical Trial Research Support, Non-U.S. Gov't England Bristol, Avon 2012/07/17 06:00 Clin Biomech (Bristol, Avon). 2012 Nov;27(9):943-8. doi: 10.1016/j.clinbiomech.2012.06.004. Epub 2012 Jul 12.