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metallosis 229 articles

Indiana man claims DePuy Orthopaedics metal-on-metal hip implant is the source of ‘constant debilitating pain’

Just four days after a Texas jury awarded six plaintiffs a $1 billion verdict against DePuy Orthopaedics and its parent company, Johnson & Johnson related to the company’s metal-on-metal hip implant, a new lawsuit is filed about a similar case. An Indiana man filed a lawsuit against DePuy, the maker of his metal-on-metal hip implant, saying it caused him “constant debilitating pain and instability” because of the “friction wear from the movement at the joint.” He received the hip implant in 2008, but was forced to have revision surgery just six years later to fix the agonizing problems. The metal-on-metal implants have been ... 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

Ten Cases Selected For MDL over Johnson & Johnson’s Metal-on-Metal Hip Implants

U.S. District Judge Ed Kinkeade, a Texas federal judge, has selected 10 cases for the next bellwether trial in the multidistrict litigation (MDL) over Johnson & Johnson’s metal-on-metal hip implants. They were selected from thousands of cases waiting their turn in the giant litigation. The judge conducted his own independent review of potential bellwether cases, all of which involve plaintiffs that claim the metal-on-metal hip design caused trillions of microscopic metal particles to shed with every step, which they say led to bone erosion, tissue damage, infection, inflammation and blood poisoning known as metallosis. The cobalt-chromium alloy socket-and-ball-head hip implant system has been ... Read More

Study Shows Cystic Lesions in Asymptomatic Patients with Metal-on-Metal Hips

A recent study of patients that had received a metal-on-metal hip system found they had adverse reactions to their new hip, despite being asymptomatic. Although the patients had not complained of pain and had not shown any signs of hip implant failure, 31 percent of them had cystic lesions, according to researchers. Many of the patients involved in the study returned a year later with symptoms of a failing hip, and required revision surgery. In a multidistrict litigation (MDL) against Johnson & Johnson and its subsidiary, DePuy Orthopaedics, the number of lawsuits aimed at the medical device manufacturer has reached 8,800. Other manufacturers such as Stryker and Wright ... Read More

Metal-on-Metal Hips Marketed as ‘Better’ Despite Lack of Long-Term Data to Prove It

One of the most successful medical advancements of  the 20th century is the total hip replacement. In 2010 alone, more than 300,000 hip procedures were performed in the U.S. Many materials have been used in hip prosthetics, and metal-on-metal surfaces have been used as early as 1948. Because the metal-on-plastic models have shown to have higher revision rates for younger, more active patients, there has been a push toward reviving metal-on-metal hip implant designs. The metal-on-metal hips showed positive results during early short-term clinical studies. Because of this, orthopedic surgeons readily accepted this modernized version of an old prosthetic and recommended ... 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

Recent Study Claims Metal Wear from Metal-on-Metal Hip implants Impairs Bone-Forming Cells’ Function

In a recent study, physicians and researchers from Charité-Universitätsmedizin Berlin and DRK Klinikum Westend tested the effects of metal wear from metal-on-metal hip implants looking for changes possibly linked to exposure to excessive metal ions. A Berlin-based team of researchers tested adjacent tissues, joint fluids and bone marrow that had been exposed to cobalt and chromium from the metal-on-metal hip implant. They found that dissolved metals were absorbed into the bone marrow, impairing the cells that are responsible for bone mineralization, a vital process in the forming of bone. Metal-on-metal hip device makers such as  DePuy Orthopaedics, a subsidiary of Johnson & Johnson,  Smith & Nephew, Wright Medical, Zimmer ... Read More

Wright Medical Pushing Eleventh Circuit for a Retrial in metal-on-metal hip implant litigation

Wright Medical, one of the manufacturers of metal-on-metal hip implants, is pushing the Eleventh Circuit for a retrial in the first bellwether case of the multidistrict litigation (MDL) that alleges the devices are faulty and lead to permanent injury. Robyn Christiansen was the recipient of a metal-on-metal Wright Conserve Hip Implant System that the jury deemed defective. Christiansen was awarded $1 million in compensatory damages last April, and $10 million in punitive damages. Although U.S. District Judge William S. Duffey, Jr., gave the company credit for its intentions to improve the quality of life for active patients looking for a lasting hip system when so ... 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