Metal On Metal Hip Replacement Complications Mri

Regional muscles and tendons were assessed for tendinosis tear atrophy and edema.

Metal on metal hip replacement complications mri.

Complications of total hip arthroplasty are common and it is essential for the radiologist to be aware of them in the assessment of radiographs of total hip replacements. Metallosis is a type of metal poisoning that can occur as a side effect of joint replacement devices with metal components such as metal on metal hip replacements or other metal implants. Metal on metal hip replacements release metal ions into the bloodstream. Other causes of pain that can affect all types of hip replacement include loosening wear and infection.

If there s damage to your hip then you ll need revision surgery in which the metal on metal implants will be removed and new ones inserted. The mri examinations of patients with metal on metal hip prostheses placed at resurfacing arthroplasty n 31 or tha n 29 were reviewed for osteolysis synovitis extracapsular disease synovial pattern and mode of decompression into adjacent bursae. In metal on metal devices both the ball and socket components are made of metal. Reports of patient reactions to these ions have spurred the fda to order the 21 makers of these devices to perform new.

These devices are made from a blend of several metals including chromium cobalt nickel titanium and molybdenum. The fda has provided information for patients with a metal on metal hip implant. This may also involve fitting a femoral stem to fix the ball onto in a total hip replacement. In 2017 the medicines and healthcare products regulatory agency mhra published updated guidelines on monitoring patients with all types of metal on metal hip implants.

Common complications of hip replacement procedures are periprosthetic fractures implant loosening joint instability hardware failure infection. In recent years information about the wear of certain metal on metal devices has raised concerns about their use. Mri findings in painful metal on metal hip arthroplasty. Metal on metal mom hip implants have unique risks in addition to the general risks of all hip implants.

These metal implants have been used in total hip replacement and hip resurfacing procedures. Considered to be the most common indication for revision surgery 1 2 4. Complications are many and can occur at various time intervals following the initial surgery. Check ups are a precautionary measure to reduce the small risk of complications and monitor patients who have had the devices implanted for a long time.