title: Imaging of hip arthroplasty.
abstract: Imaging studies are central to the evaluation of persistent or recurrent symptoms after hip arthroplasty. The evaluation starts with radiographs and may be followed by arthrography, aspiration, scintigraphy, sonography, computed tomography, and MR imaging. Common etiologies of a painful or dysfunctional hip arthroplasty are mechanical loosening, polyethylene wear-induced osteolysis, adverse local tissue reaction to metal wear products, infection, fractures, heterotopic ossification, tendinopathy, and nerve injury. MR imaging with optimized protocols and dedicated techniques for metal artifact reduction is the most comprehensive imaging modality. In this article, we discuss and illustrate the imaging appearances of these conditions with a focus on the MR imaging evaluation.
authors.affiliation: Department of Radiology and Imaging, Hospital for Special Surgery, Weill Cornell Medical College, New York, New York 10021, USA.
authors.forename: Jan
authors.initials: J
authors.lastname: Fritz
authors.forename: Brett
authors.initials: B
authors.lastname: Lurie
authors.forename: Theodore T
authors.initials: TT
authors.lastname: Miller
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects; D001862:Bone Resorption; D003952:Diagnostic Imaging / Q000379:methods*; D006621:Hip Joint / Q000473:pathology; D006622:Hip Prosthesis; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis / Q000209:etiology; D009999:Ossification, Heterotopic / Q000175:diagnosis; D059348:Peripheral Nerve Injuries / Q000175:diagnosis; D057068:Periprosthetic Fractures / Q000145:classification / Q000175:diagnosis; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000175:diagnosis; D013585:Synovitis / Q000175:diagnosis / Q000209:etiology; D052256:Tendinopathy / Q000175:diagnosis; D014657:Vasculitis / Q000175:diagnosis / Q000209:etiology