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Pincer femoroacetabular impingement and retroversion : a 3D study

Cobb, J.P. and Logishetty, K. and Davda, K. and Murphy, A. J. and Iranpour, F. (2011) Pincer femoroacetabular impingement and retroversion : a 3D study. Orthopaedic Proceedings, 93-B (SUPP I). p. 390. ISSN 1358-992X

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Abstract

Pincer femoroacetabular impingement (FAI) is cited as being the result of a socket that is either too deep or retroverted, or both. Using 3D-CT analysis, we set out to quantify the acetabular rim shape and orientation to determine the roles of these two factors in FAI. Twenty pincer acetabulae were selected from patients undergoing image based navigated surgery, where the lateral centre edge angle was greater than 40° on plain radiographs. The normal group of disease free sockets were obtained from a CT colonography database.