Mathematical Modelling Of Micromotion In Artificial Joints

James H. Verner; Urs P. Wyss

doi:10.1117/12.950470

14 April 1989 Mathematical Modelling Of Micromotion In Artificial Joints

James H. Verner, Urs P. Wyss

Proceedings Volume 1030, Biostereometrics '88; (1989) https://doi.org/10.1117/12.950470
Event: Biostereometrics '88: Spatial and Spatiotemporal Analysis of Biological Form and Function, 1988, Basel, Switzerland

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.

Citation Download Citation

James H. Verner and Urs P. Wyss "Mathematical Modelling Of Micromotion In Artificial Joints", Proc. SPIE 1030, Biostereometrics '88, (14 April 1989); https://doi.org/10.1117/12.950470

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