Journal of Rehabilitation Research & Development (JRRD)

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Computer-socket manufacturing error: How much before it is clinically apparent?

Joan E. Sanders, PhD, et al.


Figure 11. Stress concentrations for concave and convex socket shaping errors. (a) Concave (pushed-in) socket shaping error focuses stresses over surface of circular pushed-in region. (b) Convex (pulled-out) socket shaping error focuses stresses at circumference of pulled-out region.

This research was directed toward the development of quantitative standards for the quality of computermanufactured prosthetic sockets for people with transtibial limb loss. We compared errors in the shapes of computer-manufactured sockets with clinical evaluations of socket fit. Results showed that three computed metrics (mean radial error, interquartile range, and surface normal angle error) matched well with practitioner evaluations of socket fit. These metrics may be useful in the future as standards are developed for the prosthetic socket fabrication industry.

Volume 49 Number 4, 2012
   Pages 567 — 582


View HTML  ¦  View PDF  ¦  Contents Vol. 49, No. 4
This article and any supplementary material should be cited as follows:
Sanders JE, Severance MR, Allyn KJ. Computer-socket manufacturing error: How much before it is clinically apparent? J Rehabil Res Dev. 2012;49(4):567–82.
http://dx.doi.org/10.1682/JRRD.2011.05.0097
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Last Reviewed or Updated  Wednesday, May 30, 2012 10:08 AM

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