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TECHNICAL PAPERS: Bone/Orthopedic

Theoretical Investigation of an Artificial Joint With Micro-Pocket-Covered Component and Biphasic Cartilage on the Opposite Articulating Surface

[+] Author and Article Information
A. N. Suciu, T. Iwatsubo, M. Matsuda

MS-1 Laboratory, Department of Mechanical Engineering, Kobe University, 1-1 Rokkodai, Nada, 657-8501 Kobe, Japan

J Biomech Eng 125(4), 425-433 (Aug 01, 2003) (9 pages) doi:10.1115/1.1589505 History: Received March 14, 2002; Revised February 13, 2003; Online August 01, 2003
Copyright © 2003 by ASME
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References

Figures

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History of the knee dimensionless load during a walking cycle
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Micro-pockets dimensionless depth h̄ versus the porosity of the micro-pocket-covered component ϕ2f, for natural (Γ=1) and artificial cartilage (Γ=0.1−1) at T̄=5⋅10−6
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Micro-pockets depth h2 versus permeability of the biphasic cartilage k, for different porosities of the micro-pocket-covered component ϕ2f(pa=1 MPa;HA=1 MPa;h1=3 mm;T=0.1 s)
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Novel bearing system for artificial joints (a) and applications in total joint replacement of knee and hip (b)
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Physical model of the bearing system for artificial joints
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Confined (a) and unconfined (b) compression of the biphasic cartilage
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Micro-pockets dimensionless depth h̄ versus the porosity of the micro-pocket-covered component ϕ2f, for natural (T̄=10−6−10−3) and artificial cartilage (T̄=10−8−10−5) at Γ=1
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Time variation of the dimensionless fluid pressure p/pa(k=10−16 m4/(N⋅s);HA=1 MPa;h1=1,2,3 mm;pa=1 MPa;T=10−2−10−1 s;TP=102−103 s)
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Time variation of the effective friction coefficient μeff, for smooth and micro-pocket-covered components

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