Metal On Metal Hip Replacement Complications Mri

Common complications of hip replacement procedures are periprosthetic fractures implant loosening joint instability hardware failure infection.

Metal on metal hip replacement complications mri.

Metal on metal hip replacements release metal ions into the bloodstream. The fda has provided information for patients with a metal on metal hip implant. Considered to be the most common indication for revision surgery 1 2 4. 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. 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. These metal implants have been used in total hip replacement and hip resurfacing procedures. This may also involve fitting a femoral stem to fix the ball onto in a total hip replacement.

In metal on metal devices both the ball and socket components are made of metal. 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. Regional muscles and tendons were assessed for tendinosis tear atrophy and edema.

Ajr am j roentgenol 2012 199 4 884 893. 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. Reports of patient reactions to these ions have spurred the fda to order the 21 makers of these devices to perform new. Other causes of pain that can affect all types of hip replacement include loosening wear and infection.

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. Mri findings in painful metal on metal hip arthroplasty. These devices are made from a blend of several metals including chromium cobalt nickel titanium and molybdenum. Some patients who had a hip replacement prior to may 18 2016 may have received a metal on metal hip implant.