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Title: Static and dynamic pressure profiles of a patellar-tendon-bearing (PTB) socket
Authors: Goh, J.C.H. 
Lee, P.V.S. 
Chong, S.Y.
Keywords: Biomechanics
Patellar-tendon-bearing socket
Transtibial amputees
Issue Date: 2003
Citation: Goh, J.C.H., Lee, P.V.S., Chong, S.Y. (2003). Static and dynamic pressure profiles of a patellar-tendon-bearing (PTB) socket. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 217 (2) : 121-126. ScholarBank@NUS Repository.
Abstract: The purpose of this study was to evaluate the pressure distribution at the stump/socket interface in amputees wearing the patellar-tendon-bearing socket. A specially built strain gauged type pressure transducer was used for measuring this pressure distribution in four unilateral transtibial amputees. Pressure and gait parameters were measured simultaneously while they were standing and walking. Pressure profiles were compiled at 10, 25 and 50 per cent of gait cycle and compared with the pressure profiles predicted by Radcliffe in 1961. The subject's anterior-posterior pressure profiles were different from each other. However, at toe-off, each subject exhibited an increase in pressure at the patellar tendon. Their medial-lateral pressure profiles were similar: exhibiting high pressure at the medial proximal and lateral distal regions except for one subject who exhibited high pressure at the lateral proximal region instead. The subjects' pressure profiles did not resemble Radcliffe's anticipated pressure profiles. This was because ground reaction force was not the only factor affecting the resulting pressure profiles.
Source Title: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
ISSN: 09544119
DOI: 10.1243/09544110360579330
Appears in Collections:Staff Publications

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