Study Pinpoints Causes of Early Metal-On-Metal Hip Replacement Failures

Jacksonville Defective Hip ImplantA study published in the July edition of Orthopedics found that more than three-fourths of all the metal-on-metal hip implants failed within two years of being implanted. Amazingly, researchers found that 98 percent of patients surveyed required revision surgery within three years of originally receiving the implant.

According to, this is the first study that has pinpointed with any kind of accuracy the causes of metal-on-metal hip replacement failures. Researcher looked at data from 80 patients who needed revision surgery and came to the conclusion that the most common failures could be attributed to aseptic acetabular loosening, pseudotumor formation, metal hypersensitivity reactions, and component seizing.

Of all the early metal-on-metal hip replacement failures, acetabular cup loosening was by far the most prevalent, accounting for 56.25 percent of the device failures in the study. Of the cups that loosened, 78 percent were Durom acetabular cups manufactured by Zimmer. Coming in second at nine percent was the DePuy-manufactured ASR cup.

The authors of the study also claimed to have found evidence that the dangerous hip replacement devices shed metal shavings, which can poison the blood and adversely affect the surrounding tissues of patients with the implants. The study found that ten of the 80 patients had “significant metallosis or significantly involved local tissue changes due to the metal debris seen during revision surgery.”

If you or someone you love has suffered a serious ailment or injury following a metal-on-metal hip replacement surgery, a Florida metal-on-metal hip replacement injury attorney at Farah & Farah is on call to answer questions about how you can pursue your legal options to get the compensation you deserve. Call us at (800) 533-3555 for a free and confidential consultation today.