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Imaging of metal-on-metal hip resurfacing |
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| Authors: | Hayter Catherine L Potter Hollis G Su Edwin P |
| Affiliation: | a Department of Radiology and Imaging, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA b Division of Magnetic Resonance Imaging, Department of Radiology and Imaging, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA c Department of Orthopaedic Surgery, Weill Medical College of Cornell University, 525 East 68th Street, New York, NY 10065, USA d Department of Radiology and Imaging, Center for Hip Pain and Preservation, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA |
| 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. |
| Keywords: | Hip resurfacing arthroplasty Metal on metal Radiography Magnetic resonance imaging Metal hypersensitivity Osteolysis |
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