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Proceedings Paper

X-ray photogrammetry of the hip revisited
Author(s): Alan R. Turner-Smith; Steven P. White; Christopher Bulstrode
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Paper Abstract

Failure of the interface between implant and bone and consequent sinkage or loosening is recognised as the major cause of failure of artificial joints. It is commonly suspected that the ultimate lifetime of the joint may be indicated by early patterns of such movement but these are at or beyond the limit of conventional radiography to resolve. Several groups have applied photogrammetric methods to the problem. But while the absence of optics allows straightforward analytical solutions practical difficulties abound such as degradation due to X-ray scattering from the large object support of the infirm patient landmark identification on the bone and implanted components and speed and precision of film measurement. This paper introduces these difficulties and presents the various approaches to their solution currently being adopted for clinical trials at the Nuffield Orthopaedic Centre.

Paper Details

Date Published: 1 April 1991
PDF: 10 pages
Proc. SPIE 1380, Biostereometric Technology and Applications, (1 April 1991); doi: 10.1117/12.25126
Show Author Affiliations
Alan R. Turner-Smith, Univ. of Oxford (United Kingdom)
Steven P. White, Univ. of Oxford (United Kingdom)
Christopher Bulstrode, Univ. of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 1380:
Biostereometric Technology and Applications
Robin E. Herron, Editor(s)

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