title: Femoro-acetabular impingement: what the general radiologist should know.
abstract: Femoro-acetabular impingement (FAI) is a common condition in young active subjects, which can lead to the development of early osteoarthritis if not correctly diagnosed. Imaging evaluation of FAI, mainly based on plain film and magnetic resonance evaluation, must be performed according to precise guidelines and is fundamental for reaching a final diagnosis. The purpose of this paper is to provide a clinical and radiological overview of FAI by describing the most common clinical tests, the imaging techniques used in the diagnosis, and the main radiological signs that may be encountered.
authors.affiliation: Servizio di Radiologia, IRCCS Policlinico San Donato, Via Morandi 30, 20097, San Donato, Milanese (MI), Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Aliprandi
authors.forename: Francesco
authors.initials: F
authors.lastname: Di Pietto
authors.forename: Paolo
authors.initials: P
authors.lastname: Minafra
authors.forename: Marcello
authors.initials: M
authors.lastname: Zappia
authors.forename: Simona
authors.initials: S
authors.lastname: Pozza
authors.forename: Luca Maria
authors.initials: LM
authors.lastname: Sconfienza
mesh_terms: D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D057925:Femoracetabular Impingement / Q000175:diagnosis*; D006801:Humans