Article

The objectives of this study were to compare the effects of a newly
designed magnetic suspension system with that of two existing suspension methods
on pistoning inside the prosthetic socket and to compare satisfaction and
perceived problems among transtibial amputees.
In this prospective study,
three lower limb prostheses with three different suspension systems were
fabricated for ten transtibial amputees. The participants used each of the three
prostheses for 1 mo in random order. Pistoning inside the prosthetic socket was
measured by motion analysis system. The Prosthesis Evaluation Questionnaire was
used to evaluate satisfaction and perceived problems with each suspension system.
RESULTS: The lowest pistoning motion was found with the suction system compared
with the other two suspension systems (P < 0.05). The new suspension system
showed peak pistoning values similar to that of the pin lock system (P = 0.086).
The results of the questionnaire survey revealed significantly higher
satisfaction rates with the new system than with the other two systems in donning
and doffing, walking, uneven walking, stair negotiation, and overall satisfaction
(P < 0.05). CONCLUSIONS: The new suspension system has the potential to be used
as an alternative to the available suspension systems. The pistoning motion was
comparable to that of the other two systems. The new system showed compatible
prosthetic suspension with the other two systems (suction and pin lock). The
satisfaction with donning and doffing was high with the magnetic system.
Moreover, the subjects reported fewer problems with the new system.

Langue : ANGLAIS