title: Hip-femoral acetabular impingement.
abstract: Magnetic resonance imaging (MRI) has become a valuable technology for the diagnosis and treatment of femoroacetabular impingement (FAI). This article reviews the basic pathophysiology of FAI, as well as the techniques and indications for MRI and magnetic resonance arthrography. Normal MRI anatomy of the hip and pathologic MRI anatomy associated with FAI are also discussed. Several case examples are presented demonstrating the diagnosis and treatment of FAI.
authors.affiliation: Department of Orthopaedic Surgery, Stanford University Medical Center, 450 Broadway Street, Redwood City, CA 94063, USA.
authors.forename: Christian N
authors.initials: CN
authors.lastname: Anderson
authors.forename: Geoffrey M
authors.initials: GM
authors.lastname: Riley
authors.forename: Garry E
authors.initials: GE
authors.lastname: Gold
authors.forename: Marc R
authors.initials: MR
authors.lastname: Safran
mesh_terms: D001182:Arthroscopy; D057925:Femoracetabular Impingement / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006621:Hip Joint / Q000033:anatomy & histology / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed