Document Type
Article
Publication Date
1-1-2013
Abstract
Background: 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.
Keywords
Amputation, Lower limb, Pressure, Prostheses, Transtibial, Transtibial suspension system, Experimental studies, Gait cycles, Interface pressure, Level walking, Lower-limb amputees, Magnetic suspension system, Magnetic system, Peak pressure, Prosthetic devices, Prosthetic sockets, Residual limb, Statistical differences, Suspension system, Swing phase, Transtibial amputees, Artificial limbs, Prosthetics, Suspensions (components), adult, article, clinical article, disabled person, experimental study, female, gait, human, male, priority journal, prosthesis, sensor, standing, walking, Amputation Stumps, Amputees, Analysis of Variance, Calibration, Humans, Leg, Middle Aged, Prosthesis Design, Prosthesis Fitting.
Divisions
fac_eng
Publication Title
Clinical Biomechanics
Volume
28
Issue
1
Additional Information
Eshraghi, Arezoo Abu Osman, Noor Azuan Gholizadeh, Hossein Ali, Sadeeq Saevarsson, Stefan Karl Wan Abas, Wan Abu Bakar eng Evaluation Studies Research Support, Non-U.S. Gov't England Bristol, Avon 2012/11/20 06:00