Article

The purpose of this research was to pursue quality standards for
computer-manufacturing of prosthetic sockets for people with transtibial limb
loss. Thirty-three duplicates of study participants' normally used sockets were
fabricated using central fabrication facilities. Socket-manufacturing errors were
compared with clinical assessments of socket fit. Of the 33 sockets tested, 23
were deemed clinically to need modification. All 13 sockets with mean radial
error (MRE) greater than 0.25 mm were clinically unacceptable, and 11 of those
were deemed in need of sizing reduction. Of the remaining 20 sockets, 5 sockets
with interquartile range (IQR) greater than 0.40 mm were deemed globally or
regionally oversized and in need of modification. Of the remaining 15 sockets, 5
sockets with closed contours of elevated surface normal angle error (SNAE) were
deemed clinically to need shape modification at those closed contour locations.
The remaining 10 sockets were deemed clinically acceptable and not in need
modification. MRE, IQR, and SNAE may serve as effective metrics to characterize
quality of computer-manufactured prosthetic sockets, helping facilitate the
development of quality standards for the socket manufacturing industry.

Langue : ANGLAIS