title: Conventional radiographs to assess femoroacetabular impingement.
abstract: Femoroacetabular impingement (FAI) is a pathologic condition of the hip joint in young adults that, if untreated, leads to end-stage osteoarthritis. It is characterized by early pathologic contact between primary osseous prominences of the acetabular rim (so-called pincer FAI) and/or the femoral head-neck junction (cam FAI). Conventional radiographs are often considered normal because classic radiographic signs of osteoarthritis are not present initially. The physician should be aware of the radiographic features for both types of impingement to recognize subtle pathologies.
authors.affiliation: Department of Orthopaedic Surgery, University of Bern, Bern, Switzerland.
authors.forename: Moritz
authors.initials: M
authors.lastname: Tannast
authors.forename: Klaus A
authors.initials: KA
authors.lastname: Siebenrock
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000473:pathology; D005270:Femur Head / Q000000981:diagnostic imaging* / Q000473:pathology; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D015207:Osteoarthritis, Hip / Q000175:diagnosis / Q000000981:diagnostic imaging*; D011859:Radiography