Metal On Metal Hip Replacement Complications Mri

Mri findings in painful metal on metal hip arthroplasty.

Metal on metal hip replacement complications mri.

Metal on metal hip replacements release metal ions into the bloodstream. 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. 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. 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.

Metal on metal mom hip implants have unique risks in addition to the general risks of all hip implants. These devices are made from a blend of several metals including chromium cobalt nickel titanium and molybdenum. Other causes of pain that can affect all types of hip replacement include loosening wear and infection. 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 fda has provided information for patients with a metal on metal hip implant. Some patients who had a hip replacement prior to may 18 2016 may have received a metal on metal hip implant. These metal implants have been used in total hip replacement and hip resurfacing procedures. Complications are many and can occur at various time intervals following the initial surgery.

In metal on metal devices both the ball and socket components are made of metal. Ajr am j roentgenol 2012 199 4 884 893. Common complications of hip replacement procedures are periprosthetic fractures implant loosening joint instability hardware failure infection. 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.

In recent years information about the wear of certain metal on metal devices has raised concerns about their use. 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. This may also involve fitting a femoral stem to fix the ball onto in a total hip replacement. Regional muscles and tendons were assessed for tendinosis tear atrophy and edema.