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Comparative study between patellar-tendon-bearing and pressure cast prosthetic sockets
GOH JCH; LEE PVS; CHONG SY
J REHABIL RES DEV , 2004, vol. 41, n° 3B, p. 491-501 Doc n°: 115194 Localisation : Documentation IRR Descripteurs : EC16 -PROTHESE DE MEMBRE INFERIEUR , EB3 - AMPUTATION DU MEMBRE INFERIEUR This study compared the pressure distribution at the residual limb and socket interface in amputees wearing a pressure cast (PCast) socket system with amputees wearing the patellar-tendon-bearing (PTB) socket. The PCast system requires the subject to place his or her residual limb in a pressure chamber. Pressure is applied to the residual limb while the subject adopts a normal standing position. Four unilateral male amputees were fitted with both PTB and PCast sockets. Using a specially built strain-gauge-type pressure transducer, we recorded residual limb and socket pressure profiles for each subject wearing the two types of sockets during standing and walking. While some subjects exhibited similar anterior-posterior or medial-lateral pressure profiles for both prostheses, especially during push-off, other subjects exhibited high pressure distally in the PCast socket or higher-pressure concentration at the proximal region in the PT B socket. Langue : ANGLAIS |
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