title: Imaging of metal-on-metal hip resurfacing.
abstract: Conventional radiography is the primary imaging modality to evaluate the condition of hip resurfacing implants and the preferred method of assessing implant stability over time. Radiographs assess the angle of inclination of the femoral and acetabular components, implant stability, and femoral neck narrowing. Ultrasonography detects solid or soft tissue masses adjacent to the implant. Magnetic resonance imaging (MRI) detects osteolysis and complications in the periprosthetic soft tissues such as wear-induced synovitis, periprosthetic collections, neurovascular compression, and quality of the muscle and tendons of the rotator cuff of the hip. For pain after hip resurfacing, early use of optimized MRI is recommended.
authors: Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY 10021, USA.
authors: Catherine L
authors: CL
authors: Hayter
authors: Hollis G
authors: HG
authors: Potter
authors: Edwin P
authors: EP
authors: Su
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects; D003952:Diagnostic Imaging; D005272:Femur Neck / Q000473:pathology; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008670:Metals; D009999:Ossification, Heterotopic / Q000453:epidemiology; D010388:Pelvis / Q000000981:diagnostic imaging; D011859:Radiography; D013585:Synovitis / Q000175:diagnosis; D014463:Ultrasonography
chemical_list: D008670:Metals