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chromium 102 articles

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

Metal-on-metal Hip Recipients Experience Adverse Soft-Tissue Reaction to Metal Debris, Study shows

In a study at Coxa Hospital for Joint Replacement in Finland, researchers assessed 176 patients who received metal-on-metal hip implants (203 hips) and found that 84 of those hips required revision surgery. In 87 percent of these revisions, adverse soft-tissue reaction to metal debris (ARMD) was diagnosed. Additionally, a larger femoral diameter and stem type had a higher risk of ARMD, metallosis, and device failure. Metal-on-metal hip designs, made by a number of medical device manufacturers such as Wright Medical, DePuy Orthopaedics and its parent company Johnson & Johnson, Stryker, Smith & Nephew and Zimmer Biomet Holdings, are made up of a cobalt-chromium alloy, which has been ... Read More

Plaintiffs Push to Consolidate Smith & Nephew Metal-on-Metal Hip claims in MDL

On Feb. 1, plaintiffs filed a petition asking the Judicial Panel on Multidistrict Litigation (JPML) to consider consolidating complaints against Smith & Nephew over its Birmingham Hip Resurfacing (BHR) and R3 Acetabular System devices. As many as 31 cases are still pending in 22 federal district courts, according to the petition, and dozens more are expected to flood in. Pretrial coordination before a single judge in Maryland would facilitate resolution of the claims, the plaintiffs say. In June of 2012, Smith & Nephew recalled its R3 Acetabular System, an optional metal liner component used in hip implant devices. This includes about 7,700 metal liners that ... Read More

Cobalt and Chromium Toxicity from Metal-on-Metal Hip Resulted in Neuropsychiatric Symptoms

According to a study published in January in BMC Psychiatry, an online journal of psychiatric disorders, cobalt and chromium toxicity from metal-on-metal hip implant failure resulted in neuropsychiatric complications after revision surgery. Metal-on-metal hip implants are designed using a metal ball and metal socket made of a cobalt-chromium alloy. When the parts rub together during normal use, the parts may shed metal ions, which can pollute the bloodstream and damage the surrounding tissue. The normal range occurring in a person’s system due to normal environmental exposure is 0–20 nmol/l for cobalt and 0–100 nmol/l for chromium. Nine of the 10 patients in this ... Read More

Cobalt Toxicity is a Serious Risk for Metal-on-Metal Hip Patients

When Robert Peters wrote the Daily Mail for advice from Dr. Scurr about concerns with his metal-on-metal hip implants, the response seemed to only confirm his greatest fears – that his hip implants could be poisoning him. Peters’ blood was tested after his surgeon informed him of the recent reports of metal-on-metal hip failures. “Blood tests revealed I have 100 times more than normal the amount of cobalt in my blood,” Peters wrote, “as well as dangerous amounts of chromium.” Dr. Scurr explained that metal-on-metal hips are usually made of a stainless steel alloy containing cobalt and chromium, and were intended to ... 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

Scottish Man’s Metal Hip Removed After Only Three Years leaving him Permanently Crippled

John Haldane was 68 when he received a new hip, a metal-on-metal design that he was told would last two decades. Three years later, the hip had to be removed, leaving him permanently crippled. “I’m disabled and this should not have happened,” Haldane said. “I just want the company which made the implants to take responsibility.” Now, 88 people who allege they were permanently injured by metal-on-metal hip implants are seeking compensation for the agony and problems they say they experienced from their new prosthetic. Their ages range from 30s to 80s, and each claim their lives have been ruined by the faulty device. They’re ... Read More

Aussie Attorney Experiences Health Problems After Receiving Metal-on-Metal Hip

Andrew Archer, an attorney at a top law firm in Melbourne, was 41 when he had hip replacement surgery in 2008. He received a Mitch Stryker THR, a metal-on-metal design that he says gave him “nothing but pain from the word go.” In the six years following the hip replacement surgery, Archer underwent four additional operations that did little to ease his pain. “My wife said it was like living with a different person,” Archer said, “and we’ve been together 20 years. From 2000 to 2005 I worked in a top-tier law firm at full pelt – almost four years without a decent ... Read More

Illness Plagues Metal-on-Metal Hip Patient

Di Harvey, an ambitious 60-year-old former nurse in New South Wales, Sydney, Australia, had been hard at work restoring her town as well as the cinema and antique shop wiped out by the flood waters of Charlton in 2011. But when health problems started getting in the way of her efforts, Harvey sought necessary medical help. After pain killers and anti-inflammatories didn’t help the pain in her neck diagnosed as a pinched nerve, she visited an orthopedic surgeon. The neck pain was a result of her back problem, the Bendigo orthopedic surgeon had said, which was a direct result of her artificial ... Read More

1 in 5 Metal-on-Metal Hip implants Will Have to be Replaced Within 10-13 Years, Study Shows

Patients who have received a total hip arthroplasty (THA) with a metal-on-metal hip implant will most likely need a replacement within 10-13 years after they have been implanted. In a study published in June of 2015, researchers found that 1 in 5 patients will experience a failed metal-on-metal hip implant far before hip implants made from other materials will fail. James Drummond of Melbourne Medical School at the University of Melbourne in Australia, Phong Tran and Camdon Fary from the Department of Orthopaedics at Western Health in Melbourne, Australia, have found joint registry data from 2008 that showed an alarming number ... Read More