A photoelastic clinical study of the static load distribution at the stump/socket interface of PTB sockets

This source preferred by John Vinney, Philip Sewell and Siamak Noroozi

Authors: Sewell, P., Vinney, J., Noroozi, S., Amali, R. and Andrews, S.

http://www.informaworld.com/smpp/title~content=t714595820

Journal: Prosthetics and Orthotics International

Volume: 29

Pages: 291-301

ISSN: 0309-3646

DOI: 10.1080/03093640500465153

Abstract It is recognized that the assessment of prosthetic socket fit is based largely on the subjective clinical judgement of the prosthetist. This study assesses a novel technique, photoelasticity, for use as a tool for the qualitative and quantitative assessment of socket fit. Photoelasticity is a visual technique that produces contours of principal stress or strain differences. The colour and/or distance between the contours can be qualitatively or quantitatively assessed, using a polariscope, to give a full-field analysis of the stresses on the sockets's surface.

This paper presents qualitative photoelastic socket surface contour data gathered during several prosthesis fitting sessions for two male trans-tibial amputees. Results are compared with the actual known contact regions at the stump/socket interface to determine if a relationship exists. This comparison of results has then been used to conclude the suitability of photoelasticity as a tool for the assessment of socket fit and recommendations are made as to the future developments of the technique.

A direct relationship between the stump/socket contact regions and the qualitative photoelastic contours was demonstrated. Given further development this photoelastic technique may therefore be suitable for qualitative analysis of the interactions between the stump and prosthetic socket.

This data was imported from PubMed:

Authors: Sewell, P., Vinney, J., Noroozi, S., Amali, R. and Andrews, S.

Journal: Prosthet Orthot Int

Volume: 29

Issue: 3

Pages: 291-302

ISSN: 0309-3646

It is recognized that the assessment of prosthetic socket fit is based largely on the subjective clinical judgement of the prosthetist. This study assesses a novel technique, photoelasticity, for use as a tool for the qualitative and quantitative assessment of socket fit. Photoelasticity is a visual technique that produces contours of principal stress or strain differences. The colour and/or distance between the contours can be qualitatively or quantitatively assessed, using a polariscope, to give a full-field analysis of the stresses on the sockets's surface. This paper presents qualitative photoelastic socket surface contour data gathered during several prosthesis fitting sessions for two male trans-tibial amputees. Results are compared with the actual known contact regions at the stump/socket interface to determine if a relationship exists. This comparison of results has then been used to conclude the suitability of photoelasticity as a tool for the assessment of socket fit and recommendations are made as to the future developments of the technique. A direct relationship between the stump/socket contact regions and the qualitative photoelastic contours was demonstrated. Given further development this photoelastic technique may therefore be suitable for qualitative analysis of the interactions between the stump and prosthetic socket.

This data was imported from Scopus:

Authors: Sewell, P., Vinney, J., Noroozi, S., Amali, R. and Andrews, S.

Journal: Prosthetics and Orthotics International

Volume: 29

Issue: 3

Pages: 291-302

eISSN: 1746-1553

ISSN: 0309-3646

DOI: 10.1080/03093640500465153

It is recognized that the assessment of prosthetic socket fit is based largely on the subjective clinical judgement of the prosthetist. This study assesses a novel technique, photoelasticity, for use as a tool for the qualitative and quantitative assessment of socket fit. Photoelasticity is a visual technique that produces contours of principal stress or strain differences. The colour and/or distance between the contours can be qualitatively or quantitatively assessed, using a polariscope, to give a full-field analysis of the stresses on the sockets's surface. This paper presents qualitative photoelastic socket surface contour data gathered during several prosthesis fitting sessions for two male trans-tibial amputees. Results are compared with the actual known contact regions at the stump/socket interface to determine if a relationship exists. This comparison of results has then been used to conclude the suitability of photoelasticity as a tool for the assessment of socket fit and recommendations are made as to the future developments of the technique. A direct relationship between the stump/socket contact regions and the qualitative photoelastic contours was demonstrated. Given further development this photoelastic technique may therefore be suitable for qualitative analysis of the interactions between the stump and prosthetic socket. © 2005 ISPO.

This data was imported from Web of Science (Lite):

Authors: Sewell, P., Vinney, J., Noroozi, S., Amali, R. and Andrews, S.

Journal: PROSTHETICS AND ORTHOTICS INTERNATIONAL

Volume: 29

Issue: 3

Pages: 291-302

ISSN: 0309-3646

DOI: 10.1080/03093640500465153

This data was imported from Europe PubMed Central:

Authors: Sewell, P., Vinney, J., Noroozi, S., Amali, R. and Andrews, S.

Journal: Prosthetics and orthotics international

Volume: 29

Issue: 3

Pages: 291-302

eISSN: 1746-1553

ISSN: 0309-3646

It is recognized that the assessment of prosthetic socket fit is based largely on the subjective clinical judgement of the prosthetist. This study assesses a novel technique, photoelasticity, for use as a tool for the qualitative and quantitative assessment of socket fit. Photoelasticity is a visual technique that produces contours of principal stress or strain differences. The colour and/or distance between the contours can be qualitatively or quantitatively assessed, using a polariscope, to give a full-field analysis of the stresses on the sockets's surface. This paper presents qualitative photoelastic socket surface contour data gathered during several prosthesis fitting sessions for two male trans-tibial amputees. Results are compared with the actual known contact regions at the stump/socket interface to determine if a relationship exists. This comparison of results has then been used to conclude the suitability of photoelasticity as a tool for the assessment of socket fit and recommendations are made as to the future developments of the technique. A direct relationship between the stump/socket contact regions and the qualitative photoelastic contours was demonstrated. Given further development this photoelastic technique may therefore be suitable for qualitative analysis of the interactions between the stump and prosthetic socket.

The data on this page was last updated at 05:18 on July 20, 2019.