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RESEARCH PAPERS

The Effect of Stress Concentration on Bone Remodeling: Theoretical Predictions

[+] Author and Article Information
K. Firoozbakhsh, M. Aleyaasin

Mechanical Engineering Department, Sharif University of Technology, Tehran, Iran

J Biomech Eng 111(4), 355-360 (Nov 01, 1989) (6 pages) doi:10.1115/1.3168391 History: Received March 30, 1985; Revised June 08, 1989; Online June 12, 2009

Abstract

Theoretical predictions of internal bone remodeling around an elliptical hole are studied. The internal remodeling theory due to Cowin and Hegedus is employed. The bone is modeled as an initially homogeneous adaptive elastic plate with an elliptical hole under a superposed steady compressive load. It is shown that there will exist a final inhomogeneous remodeling distribution around the hole that will disappear away from the hole. The remodeling is such that the compressive stress concentration causes the bone structure to evolve to one of greater density and stiffer elastic coefficients. The speed of remodeling around the hole and its variation with respect to distance is investigated and discussed. It is shown that the rate of bone reinforcement in the area of compressive stress concentration is much higher than the rate of bone resorption in the area of existing tensile stress. Special cases of a circular hole and vertical and horizontal slots are studied and discussed.

Copyright © 1989 by ASME
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