Article

A prosthesis encounters loading through forces and torques exerted by the person
with amputation. International Organization for Standardization (ISO) standard
10328 was designed to test most lower-limb prosthetic components. However, this
standard does not include prosthetic sockets. We measured static failure loads of
prosthetic sockets using a modified ISO 10328 and then compared them with the
criteria set by this standard for other components. Check socket (CS) strengths
were influenced by thickness, material choice, and fabrication method. Copolymer
socket (CP) strengths depended on thickness and fabrication methods. A majority
of the CSs and all of the CPs failed to pass the ISO 10328 ductile loading
criterion. In contrast, the strengths of definitive laminated sockets (DLs) were
influenced more by construction material and technique. A majority of the DLs
failed to pass the ISO 10328 brittle loading criterion. Analyzing prosthetic
sockets from a variety of facilities demonstrated that socket performance varies
considerably between and within facilities. The results from this article provide
a foundation for understanding the quality of prosthetic sockets, some insight
into possible routes for improving the current care delivered to patients, and a
comparative basis for future technology.

Langue : ANGLAIS