A study on the influence of prosthetic interface material in transtibial amputees' gait.

Bio-medical Materials and Engineering
Adriana CavacoSandra Pais

Abstract

Interfaces of transtibial prosthesis have an important role in the transmission of ground reaction forces, damping gait loads and tissue protection. This work aims to study the influence of prosthesis interfaces on amputees' gait and perception on pain, comfort and the overall interface/prosthesis system. Commercial samples of three different interface materials were selected: block copolymer (Material I), silicone gel (Material II) and silicone elastomer (Material III). Using standardized prosthesis, four amputee subjects performed gait tests at three imposed cadences in a barometric platform. The subjects also filled in a questionnaire about their perception. Material II presented the highest asymmetries of vertical ground reaction forces and was perceived as the most painful and uncomfortable. Material III led to the most symmetric load distribution between legs and was perceived as the most comfortable. Material I showed better overall biomechanical behavior and better subject's perception. Material III showed appropriate characteristics for lower levels of activity for which it is recommended. Prescription of Material II should be rethought, as it is only adequate for specific and occasional situations. Material I should b...Continue Reading

References

Mar 11, 2005·Archives of Physical Medicine and Rehabilitation·Daniel C NorvellNoel S Weiss
Nov 6, 2007·Prosthetics and Orthotics International·G K KluteW R Ledoux
Jul 31, 2008·Research Quarterly for Exercise and Sport·Pamela A Macfarlane, Marilyn A Looney
Sep 22, 2009·Revista española de geriatría y gerontología·Enric Duaso MagañaAntonio Rey
Apr 14, 2010·Prosthetics and Orthotics International·Glenn K KluteJocelyn S Berge
Apr 26, 2011·Prosthetics and Orthotics International·Richa SinhaPerianayagam Arokiasamy
Jul 10, 2012·Journal of Rehabilitation Research and Development·Erin BoutwellSteven Gard
Jun 19, 2013·Archives of Physical Medicine and Rehabilitation·Barbora KolarovaMilan Elfmark
May 29, 2014·PloS One·Arezoo EshraghiWan Abu Bakar Wan Abas
Jan 3, 2015·Journal of the Mechanical Behavior of Biomedical Materials·A CavacoL Durães

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