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Proceedings Paper

Mathematical Modelling Of Micromotion In Artificial Joints
Author(s): James H. Verner; Urs P. Wyss
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Paper Abstract

In spite of care taken in endoprosthetic joint replacement, migration of prosthetic components from fractions of a mm to one cm or more can occur. To detect such "micromotion" in a clinical environment, it is proposed that the positions of radiopaque markers implanted in both the prosthesis and the host bone and positions of their images on two or more conventional X-rays be used in a mathematical model. One implementation illustrates that estimates to within 0.5 mm are possible using prototype models.

Paper Details

Date Published: 14 April 1989
PDF: 8 pages
Proc. SPIE 1030, Biostereometrics '88, (14 April 1989); doi: 10.1117/12.950470
Show Author Affiliations
James H. Verner, Queen's University (Canada)
Urs P. Wyss, Queen's University (Canada)

Published in SPIE Proceedings Vol. 1030:
Biostereometrics '88
Juerg U. Baumann; Robin E. Herron, Editor(s)

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