A New Technique for Radiographic Measurement of Acetabular Cup Orientation

Derbyshire, Brian and Diggle, Peter J and Ingham, Christopher J and Macnair, Rory and Wimhurst, James and Jones, Henry Wynn (2013) A New Technique for Radiographic Measurement of Acetabular Cup Orientation. Journal of Arthroplasty. ISSN 1532-8406

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Accurate radiographic measurement of acetabular cup orientation is required in order to assess susceptibility to impingement, dislocation, and edge loading wear. In this study, the accuracy and precision of a new radiographic cup orientation measurement system were assessed and compared to those of two commercially available systems. Two types of resurfacing hip prostheses and an uncemented prosthesis were assessed. Radiographic images of each prosthesis were created with the cup set at different, known angles of version and inclination in a measurement jig. The new system was the most accurate and precise and could repeatedly measure version and inclination to within a fraction of a degree. In addition it has a facility to distinguish cup retroversion from anteversion on anteroposterior radiographs.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Arthroplasty
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© 2013.
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Deposited On:
24 Sep 2013 08:40
Last Modified:
27 Apr 2022 02:10