title: The prevalence of radiographic femoroacetabular impingement in younger individuals undergoing total hip replacement for osteoarthritis.
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.
authors.affiliation: Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
authors.forename: Rita
authors.initials: R
authors.lastname: Lung
authors.forename: Julie
authors.initials: J
authors.lastname: O'Brien
authors.forename: Julia
authors.initials: J
authors.lastname: Grebenyuk
authors.forename: Bruce B
authors.initials: BB
authors.lastname: Forster
authors.forename: Mary
authors.initials: M
authors.lastname: De Vera
authors.forename: Jacek
authors.initials: J
authors.lastname: Kopec
authors.forename: Charles
authors.initials: C
authors.lastname: Ratzlaff
authors.forename: Donald
authors.initials: D
authors.lastname: Garbuz
authors.forename: Helen
authors.initials: H
authors.lastname: Prlic
authors.forename: John M
authors.initials: JM
authors.lastname: Esdaile
mesh_terms: D000328:Adult; D019644:Arthroplasty, Replacement, Hip; D015331:Cohort Studies; D005260:Female; D057925:Femoracetabular Impingement / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging* / Q000601:surgery; D015995:Prevalence; D011859:Radiography; D012189:Retrospective Studies