The prevalence of radiographic femoroacetabular impingement in younger individuals undergoing total hip replacement for osteoarthritis

Rita Lung, Julie O'Brien, Julia Grebenyuk, Bruce B Forster, Mary De Vera, Jacek Kopec, Charles Ratzlaff, Donald Garbuz, Helen Prlic, John M Esdaile, Rita Lung, Julie O'Brien, Julia Grebenyuk, Bruce B Forster, Mary De Vera, Jacek Kopec, Charles Ratzlaff, Donald Garbuz, Helen Prlic, John M Esdaile

Abstract

Femoroacetabular impingement (FAI) has been suggested as a major cause of primary hip osteoarthritis (PHOA). We assessed the prevalence of FAI detected radiographically in a cohort that underwent total hip replacement (THR) for PHOA. Two radiologists independently assessed the retrospective preoperative radiographs (AP pelvis and lateral) of 82 subjects <55 years of age scheduled for THR. Subjects were categorized as: definite FAI, no FAI, and not possible to exclude FAI. Definite FAI was present in 36 % of subjects. FAI is common in young subjects undergoing THR for PHOA.

Figures

Fig. 1
Fig. 1
a). Cam impingement; b). pincer impingement. Reproduced with permission from Stafford and Witt [4]. The anatomy, diagnosis, and pathology of femoroacetabular impingement

Source: PubMed

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