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TECHNICAL PAPERS

3-D Model of a Total Hip Replacement In Vivo Providing Hydrodynamic Pressure and Film Thickness for Walking and Bicycling

[+] Author and Article Information
Donna M. Meyer

Department of Mechanical Engineering and Applied Mechanics, University of Rhode Island, Wales Hall, Kingston, RI 02881 Phone: (401) 874-9292 Fax: (401) 874-2355e-mail: dmmeyer@egr.uri.edu

John A. Tichy

Department of Mechanical, Aerospace and Nuclear Engineering, JEC-2049, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180-3590 Phone: (518) 276-6351e-mail: tichyi@rpi.edu

J Biomech Eng 125(6), 777-784 (Jan 09, 2004) (8 pages) doi:10.1115/1.1631585 History: Received June 28, 2001; Revised July 01, 2003; Online January 09, 2004
Copyright © 2003 by ASME
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References

Figures

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Total hip replacement model geometry: 28 mm diameter femoral head with a 28.25 mm inside diameter acetabular cup.
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Lubrication model verification: numerical solution with boundary smoothing procedure versus analytical solution for Poisson equation
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Maximum fluid film pressure distributions (MPa) versus the period of a walking gait (s)
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Numerically determined load (N) versus experimentally obtained loads (Bergmann et al. 1993a, 1997) for the period of a walking gait (s)
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Minimum fluid film thickness (μm) versus the period of a walking gait (s)
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Maximum fluid film pressure distribution (MPa) versus the period of a bicycling gait (s)
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Numerically determined loads (N) versus experimentally obtained loads (Bergmann et al. 1993b, 1997) for the period of a bicycling gait (s)
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Minimum fluid film thickness (μm) versus the period of a bicycling gait (s)

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