A recent study on metal-on-metal hip implants finds that metallosis from defective hip implants may lead to bursal cysts of the ilioposoas, otherwise known as the hip flexor muscles. The December 2012 study from Orthopedics journal investigated the unusual complication in a woman who received an all-metal total hip replacement.

Five years after her hip replacement surgery, she began to experience lower-limb swelling. The swelling occurred secondary to venous obstruction by an iliopsoas bursal cyst, which is associated with elevated levels of toxic cobalt and chromium ions in her bloodstream. Imaging tests showed that the bursal cyst severely compressed the common femoral vein.

The authors of the study believe that the cyst was an inflammatory reaction to metal debris that shed into the hip flexor muscles. The patient underwent revision surgery to remove the metal-on-metal hip implant.

Though the study shed light onto a rare complication, many other metal-on-metal hip implant side effects have been well documented. All-metal hip replacement implants can cause pain, inflammation, metallosis, pseudo tumors, and hip replacement failure, forcing patients to go through revision surgery to remove the device. Symptoms of metallosis can manifest outside of the local hip area, even affecting the heart, nervous system and thryroid gland.

In June, the FDA convened a panel of experts to evaluate metal-on-metal hip replacement dangers. The agency has not issued an official recommendation, though victims of the dangerous devices were vocal about their concerns. Dr. Diane Zuckerman, president of the National Research Center for Women & Families, commented: “Keeping these implants on the market for the next 5 years while research is being done is not an ethical decision…I believe a tragic mistake was made by allowing these products on the market without good data.”

In August 2010, DePuy Orthopaedics issued a worldwide recall of the DePuy ASR hip implants due to unacceptably high failure rates. Several other models of metal-on-metal hips have followed suit, though many metal hip replacements still remain on the market.

If you experienced complications or underwent revision surgery from a metal-on-metal hip implant, consider filing a metal hip replacement lawsuit to seek compensation for your injuries. You may be entitled to compensation for your medical expenses, lost wages, pain and suffering, and more.

Our hip replacement lawyers are filing cases on behalf of individuals with metal hip implants, including:

• DePuy ASR hip system • DePuy Pinnacle metal-on-metal hip systems • Wright Conserve and Profemur hip replacements • Biomet M2A Magnum hip implant

In addition, we are investigating claims about the Stryker Rejuvenate. For more information, call (877) 779-1414.

Published December 12, 2012 by