Metal On Metal Hip Replacement Complications Mri

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.

Metal on metal hip replacement complications mri.

In metal on metal devices both the ball and socket components are made of metal. 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. 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. Other causes of pain that can affect all types of hip replacement include loosening wear and infection.

Complications are many and can occur at various time intervals following the initial surgery. Considered to be the most common indication for revision surgery 1 2 4. 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. In recent years information about the wear of certain metal on metal devices has raised concerns about their use.

Some patients who had a hip replacement prior to may 18 2016 may have received a metal on metal hip implant. Common complications of hip replacement procedures are periprosthetic fractures implant loosening joint instability hardware failure infection. Regional muscles and tendons were assessed for tendinosis tear atrophy and edema. Metal on metal hip replacements release metal ions into the bloodstream.

These devices are made from a blend of several metals including chromium cobalt nickel titanium and molybdenum. 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. 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. All artificial hip implants carry risks including wear of the component material.

Metal on metal mom hip implants have unique risks in addition to the general risks of all hip implants. Ajr am j roentgenol 2012 199 4 884 893. The fda has provided information for patients with a metal on metal hip implant. These metal implants have been used in total hip replacement and hip resurfacing procedures.