Hip Replacement Defect Lawyer & Implant Complications | The Lyon Firm
« Back to Blog

Hip Replacement Defect Lawyer & Metal on Metal Recalls

Ohio Hip Replacement Defect Lawyer reviews Metal on Metal Hip implant Failure and revision surgery lawsuits for injured plaintiffs nationwide


According to a BMJ/BBC Newsnight investigation, thousands of patients who have received metal-on-metal hip implants may have been exposed to toxic metal substances and are suffering high failure rates leading to revision surgeries. The implants are called “metal-on-metal” because the head at the top and the lining of the cup it fits into are both made of cobalt-chromium alloy rather than ceramic or polyethylene. There are both total hip replacement and hip resurfacing designs using the metal-on-metal design.

The Lyon Firm works with medical device industry experts to determine the root cause of implant failure and represents plaintiffs nationwide in hip defect lawsuits. Joe Lyon has experience filing injury claims against large device corporations and recovering settlements to help pay for medical costs, lost wages and long-term disability. You may be able to join existing class action lawsuits and seek rightful compensation.

Hip replacement systems made by Depuy, Wright Medical, Zimmer Biomet, Smith and Nephew and Stryker may be defective and injured recipients of hip implants may contact a Hip Replacement defect lawyer and file claims against medical device companies. 


Metal on Metal Hip Implant Failure

After seven years, average failure rates are 11.8% for resurfacing and 13.6% for metal-on-metal total hip replacement, although failure rates vary with the brand used. Failure rates for hip implants made of other materials ranges from 3.3%-4.9%. Metal-on-metal devices have been implanted into over a million patients in the US.

Cobalt-chromium implants have been found to release metal ions, which can get into local tissue causing harmful reactions that destroy muscle and bone. These reactions leave some patients with long term disabilities– a condition known as metallosis. The ions can also get into the bloodstream spreading to the lymph nodes, spleen, liver, and kidneys before being excreted in urine.


Metal on Metal Hip Replacement Defects

Multiple studies and scientific research organizations have warned about the  potential for metal-on-metal hip implants to cause cancer. In 1990, the World Health Organization International Agency for the Research on Cancer released a monograph listing hexavalent chromium as a proved carcinogen; trivalent chromium a potential carcinogen; and cobalt ions a probable carcinogen. Despite this risk, DePuy’s marketing of metal-on-metal hips continued unabated, with promotional material failing to reflect internal company concerns.

indiana lung cancer lawyer hip replacement defect lawyer


Hip Replacement Defect Lawyer & Metallosis

Especially problematic is the fact that there are no rules on what level of cobalt ions in blood for patients receiving orthopaedic implants is unacceptable. DePuy’s own designer and consultant, Dr. Schmalzried, has said that levels should be no higher than 2 μg/L. However, studies show that blood cobalt concentrations can reach over 300 μg/L through the wear of some of the newer metal-on-metal total hip prostheses. Most healthy people have about 0.5 μg/L of cobalt in their blood.

After numerous reports of  metal on metal hip replacement failure, the FDA has decided to place all hip implants into a high risk category—fast track entry will be forbidden. Reference: BMJ 2012;344:e1410


Evidence preservation is paramount in metal on metal hip replacement failure cases. The device, fluid and any tissue must be preserved. Joe Lyon is an experienced Medical device Recall attorney and hip replacement defect lawyer experienced in metal-on-metal hip implant failure cases. Call (800) 513-2403 for assistance with your potential claim. 

Contact us today.