X-ray photogrammetry of the hip revisited

Alan R. Turner-Smith; Steven P. White; Christopher Bulstrode

doi:10.1117/12.25126

1 April 1991 X-ray photogrammetry of the hip revisited

Alan R. Turner-Smith, Steven P. White, Christopher Bulstrode

Proceedings Volume 1380, Biostereometric Technology and Applications; (1991) https://doi.org/10.1117/12.25126
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States

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.

Citation Download Citation

Alan R. Turner-Smith, Steven P. White, and Christopher Bulstrode "X-ray photogrammetry of the hip revisited", Proc. SPIE 1380, Biostereometric Technology and Applications, (1 April 1991); https://doi.org/10.1117/12.25126

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