Abstract
Imaging the hip joint with optimized MRI protocol parameters provides the radiologist with the ability to reliably diagnose complex hip abnormalities. The institution of appropriate metal artifact reduction techniques and dedicated sequences can enhance visualization of the periprosthetic bone and soft tissues and allow improved detection of the more frequently encountered total hip arthroplasty-related conditions, such as mechanical loosening, polyethylene wear, and adverse local tissue reactions. Finally, through the use of dynamic contrast-enhanced MRI, abnormal femoral head perfusion, one of the most common complications associated with femoral neck fracture internal fixation, can be detected before the development of femoral head osteonecrosis, subchondral collapse, and secondary osteoarthritis. Thus, through the institution of the techniques described in this review article, the challenges associated with MRI of hip arthroplasty and instrumentation can be overcome, allowing for the diagnosis of common associated complications.
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