A Pressure Distribution Transducer for In-Vitro Static Measurements in Synovial Joints

[+] Author and Article Information
A. M. Ahmed

Department of Mechanical Engineering, McGill University, Montreal, Canada

J Biomech Eng 105(3), 309-314 (Aug 01, 1983) (6 pages) doi:10.1115/1.3138425 History: Received July 08, 1982; Revised April 05, 1983; Online June 15, 2009


The basic features and the performance characteristics of a transducer to measure in-vitro static pressure distribution at the articular interfaces of intact synovial joints are described. Pressure distribution is interpreted from the microindentation pattern left on a thin plastic material, the indenter and the plastic material having been subjected to load between the articular surfaces. The effects of the finite thickness and compliance of the transducer and the effects of the time-dependent response properties of the articular cartilage on the accuracy of measurement have been estimated by means of specific experiments and analyses.

Copyright © 1983 by ASME
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