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metal-on-metal hip implant 34 articles

Biomet denied summary judgment in latest metal hip implant trial

A favorable ruling by U.S. District Judge Robert L. Miller Jr., in litigation involving allegedly defectively designed metal-on-metal hip implants manufactured by Biomet will help move hundreds of plaintiffs in the multidistrict litigation toward either their day in court or a resolution of their claims, said Navan Ward Jr., Beasley Allen attorney and co-lead counsel for the Biomet Plaintiffs Steering Committee. The favorable rulings by Judge Miller involve two bids by Biomet to dismiss certain claims in the multidistrict litigation that alleges the company’s metal-on-metal hip implants cause injuries to patients such as metallosis, a type of metal poisoning. The ... Read More

Small-Head Metal-on-Metal Hip Implants Fail Frequently

Large-diameter metal-on-metal hips were thought to be an independent risk factor in hip failure, besides the material from which the prosthetic was made. But according to a recent study, adverse reactions to metal debris from small-headed metal-on-metal Articular Surface Replacement (ASR) hips are even more common than originally thought. In the study, 482 hips (424 patients) were reviewed. After the ASR small-diameter hip was recalled at an average of 4.9 years post-op, 379 patients (435 hips) agreed to a screening that measured cobalt and chromium in the blood. Metal-on-metal hip implants are created with a ball-and-cup design made up of a cobalt-chromium ... Read More

Large-Diameter Metal-on-Metal Hips Sparked Study on Metal Allergy

A Missouri orthopedic surgeon and colleagues have initiated a study that identifies the patients who underwent total joint replacement reporting a metal allergy. The study analyzes the effect of voluntary reported metal allergies on the clinical outcomes following the surgery. Dr. Denis Nam, recipient of the Orthopaedic Research and Education/Current Concepts of Joint Replacement (CCJR) Clinical Award Paper, along with other researchers, gathered retrospective data from 589 patients who received total knee arthroplasty (TKA), and 906 patients who received total hip arthroplasty between the years of 2009 and 2011. Before January 2010, the incidence of self-reported metal allergy was 1.7 percent. After January 2010, the incidence was 4 percent. ... Read More

Global Hip Replacement Market is on the Rise

In an industry analysis forecast report, the global hip replacement market has been estimated to expand at a compound annual growth rate of 4.1 percent between now and 2024, which is about $9.1 billion. The number of incidences of arthritis, hip fractures, and hip bone infection, which increase demand for hip replacements, as well as the development of new hip implants using new methods such as 3D printing technology are responsible for the rapid growth of the hip replacement market. Despite the positive growth, however, around 578 hip implant products were recalled from 2002 to 2013, including metal-on-metal hips, per the U.S. Food and Drug Administration ... Read More

Patients claiming injuries from Hip Implants continue quest for compensation despite roadblocks

Patients in New Zealand who claim they have been injured by metal-on-metal hip implants have hit another roadblock in their fight for compensation, but are not giving up. Justice David Collins in the High Court at Wellington has ruled that New Zealand’s method of accident compensation disallows plaintiffs from suing the hip implant manufacturer, DePuy International, which is based in Leeds, England. The three plaintiffs represent a larger group of 38 claimants that are seeking to file claims against DePuy, a subsidiary of Johnson & Johnson, for compensation in regards to their failed devices. One of the claimants, James Elliott, who has become an unofficial ... Read More

New Zealand Woman Experiences Severe Metal Toxicity Two Years After Receiving Double Metal-on-Metal Hip Implants

Lynne McKay was a healthy 50-year old former nurse that suffered from hip dysplasia, a painful condition in which growths form at the hip joints. She could barely make it to the mailbox and back. “I got to a place where I could only walk to the letterbox with two walking sticks,” McKay recalls. She was admitted in 2007 for a double hip replacement and received the Stryker Mitch THR (total hip replacement) System, with metal components made of cobalt and chromium. She was excited to finally get her life back. Almost immediately, McKay began experiencing pain. Her hips clicked when she walked. ... Read More

UK Woman Suffers Tissue Damage and Metallosis after Receiving Metal-on-Metal Hip

A healthy 42-year-old UK woman had a hip resurfacing surgery, receiving a brand new metal-on-metal hip made of cobalt and chromium by Smith & Nephew Orthopaedics. After only four years she began experiencing progressing pain. Six months later, she was diagnosed with destruction of bone tissue called osteolysis, and the metal level in her blood was “grossly elevated.” Doctors discovered during surgery that metallosis, or blood poisoning caused by metal content, was “massive aggressive” both in the joint and around it. Half the cervical neck of the implant had been heavily eroded as well as the acetabulum. The “catastrophic” hip implant failure was corrected by revision surgery, using ... Read More

Patients with metal-on-metal hip exhibit increase in cobalt and chromium levels

Just two years ago, a five-year follow-up was performed on 52 randomized patients that had received either a metal-on-metal hip or metal-on-polyethylene hip implant. Tests confirmed an alarming 10- to 20-fold increase in cobalt and chromium levels in the systems of the patients who received the metal-on-metal hip implant. Most hip implants last for 20 years or more. However, patients are reporting metal hip implants like the ASR metal-on-metal hip implants made by DePuy Orthopaedics, a subsidiary of Johnson & Johnson, are failing in only five years Other metal-on-metal hip implant makers are Smith & Nephew, Wright Medical, Zimmer Biomet Holdings and Stryker. All  have faced an onslaught ... Read More

Court documents indicate Johnson & Johnson knew of design flaws in ASR Metal Hip for years before recall

According to an article published in the New York Times, Johnson & Johnson executives allegedly knew about flaws in the design of its metal-on-metal ASR hip implant before it proceeded with a device recall in 2010. The Times reported that internal documents were disclosed during a trial for lawsuits filed against J&J and its subsidiary, DePuy Orthopaedics, that indicate the company concealed the information from physicians and patients. The ASR metal hip device was being marketed in the United States in 2005. Among problems reported by physicians and patients related to the hip implant is that the device sheds metal debris as the parts rub together from normal use. This can result in ... Read More

Man diagnosed with Cobalt Poisoning After Receiving Metal Hip Implant

A patient with severe heart failure was referred to the Marburg University clinic in Germany in 2012. A possible cause was coronary artery disease, but after further examinations, the medical team ruled it out. However, some of the medics working on the case noticed a few notable similarities between the patient’s symptoms and the symptoms of a patient on House, a TV series in which British actor Hugh Laurie plays the lead character, Gregory House, M.D. On the TV show, a patient was experiencing strikingly similar symptoms and was diagnosed as having cobalt poisoning, which was caused by the debris shed ... Read More