title: Range of motion in femoroacetabular impingement.
abstract: Recent epidemiological studies have demonstrated that radiographic features specific to femoroacetabular impingement appear far more frequently in healthy and asymptomatic cohorts than previously anticipated. It remains unclear how incidental findings should be interpreted clinically. In addition, several authors have suggested that a decreased range of motion is part of the clinical presentation of femoroacetabular impingement. The purpose of the present study was to describe and analyze differences in range of motion between femoroacetabular impingement patients, asymptomatic individuals with incidental radiographic findings and healthy controls, using a validated electromagnetic tracking system. Furthermore, it was evaluated which motions were clinically relevant and could be used to differentiate between these three groups. We found all evaluated motions to differ significantly between patients and controls. The anterior impingement test showed a significant difference between patients and asymptomatic cases. In conclusion, functional evaluation of the range of motion appeared in this study as a useful tool in the diagnostic work-up of femoracetabular impingement.
authors: Department of Orthopaedic Surgery and Traumatology, Ghent University Hospital, Ghent, Belgium. emmanuel.audenaert@ugent.be
authors: Emmanuel
authors: E
authors: Audenaert
authors: Jan
authors: J
authors: Van Houcke
authors: Bastiaan
authors: B
authors: Maes
authors: Luc
authors: L
authors: Vanden Bossche
authors: Jan
authors: J
authors: Victor
authors: Christophe
authors: C
authors: Pattyn
mesh_terms: D000293:Adolescent; D000328:Adult; D058070:Asymptomatic Diseases; D057925:Femoracetabular Impingement / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D006621:Hip Joint / Q000503:physiopathology*; D006801:Humans; D008297:Male; D011859:Radiography; D016059:Range of Motion, Articular; D055815:Young Adult