Tagged Articles

metal on metal 195 articles

Researchers unsure how to evaluate metal ion levels in patients with metal-on-metal hip implants

Blood tests to measure the amount of metal ions in the blood of patients with metal-on-metal hip implants are inexpensive and provide helpful information. But they do not provide definitive information whether an artificial hip is functioning poorly and is likely to fail, new research shows. Chromium and cobalt ion levels are generally elevated in the blood of patients with all-metal hip implants. Because the implants have been found more likely to fail than traditional hip implants, medical regulators say that patients with the devices should be monitored on a regular basis for signs of failure. That monitoring generally includes a ... Read More

Designer of metal hip implant says he no longer uses the defective devices

Dr. Thomas Schmalzried, an orthopedic surgeon and one of the lead designers of the ASR metal-on-metal hip replacement system made by Johnson & Johnson subsidiary DePuy Orthopaedics, testified before a jury this week that he would not implant the device in patients today. Schmalzied made the statement while testifying at the second trial involving the DePuy all-metal hip implants, which have since been taken off the market. An estimated 93,000 people worldwide received the DePuy ASR hip implant when they were recalled in 2010. Johnson & Johnson and DePuy face more than 10,000 lawsuits from patients who say they were ... Read More

DePuy’s ASR hip implant caused plaintiff’s bone decay, surgeon tells jury

An orthopedic surgeon testifying on behalf of a woman who alleges she was injured by ASR metal hip implants manufactured by DePuy Orthopedics told jurors in the Circuit Court of Cook County, Illinois, that metal debris from the hip devices “absolutely” caused the plaintiff to suffer from bone decay. DePuy is a subsidiary of Johnson & Johnson. Surgeon Tony Nargol, who has warned about the dangers of metal-on-metal hip implants such as DePuy’s ASR devices, particularly to women, told jurors that plaintiff Carol Strum’s calcar bone had been “eaten away” near the ASR hip device she had implanted in in ... Read More

DePuy’s tests on metal artificial hip system failed to show potential dangers of device

Orthopedic doctors were optimistic when metal-on-metal hip replacement systems were first introduced around the world. They offered a seemingly more durable alternative to traditional ceramic or plastic artificial hips. The devices were especially attractive to younger recipients, who wanted to go back to a more active lifestyle. DePuy Orthopaedics, a subsidiary of Johnson & Johnson, introduced the DePuy ASR metal-on-metal hip replacement system and hip resurfacing system. The hip replacement system was quickly approved in the United States without prior human testing because it was similar to devices already on the market. However, the Food and Drug Administration (FDA) refused to ... Read More

Smokers more likely to experience problems with hip replacements

Smokers who undergo hip replacement surgery take longer to heal after their operations, experience more complications, and are more likely to need revision surgery to repair or replace their implant, a new study reveals. The study was presented at the annual meeting of the American Academy of Orthopaedic Surgeons. Researchers reviewed data from 300 patients who underwent hip replacement surgery between 2007 and 2009. A third of the patients were smokers. Researchers found that patients who smoked had an 8 percent chance of their implants failing compared to 1 percent for nonsmokers. Of the nine revision surgeries among smokers, four ... Read More

Montana man awarded $8.3 million in first of 10,000+ DePuy metal hip implant lawsuits

Johnson & Johnson subsidiary DePuy Orthopaedics designed a flawed metal-on-metal hip replacement system and owes a retired prison guard from Montana $8.3 million in compensatory damages, a California jury decided in the first of more than 10,000 lawsuits regarding the devices to stand trial. Loren “Bill” Kransky sued DePuy arguing that the company failed to adequately test the device before marketing it in the United States. His lawsuit also claims the company covered up surgeon complaints of failures and considered redesigning the ASR model before ultimately deciding to stop making it in 2008. Johnson & Johnson recalled 93,000 DePuy ASR ... Read More

Johnson & Johnson ordered to pay $8.3 million in first hip implant lawsuit to go to trial

A Los Angeles jury found in favor of Plaintiff Loren “Bill” Kransky, ordering Johnson & Johnson to pay the man $8.3 million in compensatory damages for debilitating injuries he suffered as a result of a faulty hip implant. This was the first of many cases pending in ongoing litigation against J&J and its subsidiary, DePuy orthopedics, involving the ASR XL metal-on-metal hip implant. Court documents unsealed before the trial started showed that DePuy executives knew in 2008 that the ASR hip implants were failing early at unusually high rates, but the company continued to make the devices for several more ... Read More

DePuy estimated more than a third of its metal hips would fail after less than five years

A year after DePuy Orthopaedics recalled 93,000 artificial hips from around the world, the company estimated that more than a third of the devices would fail within four and a half years, according to the company’s internal documents recently unsealed as part of court records. The evidence was revealed during the first of more than 10,000 lawsuits against DePuy and Johnson & Johnson regarding the defective hip implants, and has caused a wave of concern halfway around the world, with British MPs calling for a criminal inquiry into DePuy based on the unsealed documents. The failure-rate estimate came during pretrial ... Read More

British MPs call for criminal inquiry into toxic DePuy hip implants

British MPs have called for an investigation into DePuy Orthopaedics after testimony from a U.S. court case revealed that the medical device company continued to sell defective artificial hip implants despite knowing for at least three years they were toxic to patients. DePuy, a subsidiary of Johnson & Johnson, recalled the ASR hip replacement system and hip resurfacing system after mounting reports that the device was failing at a higher than expected rate. The recall affected an estimated 93,000 people worldwide. The DePuy device was made to be more durable with all-metal parts, as opposed to plastic or ceramic parts ... Read More

Greek prosecutors charge DePuy officials with bribery, money laundering

Greek prosecutors have filed criminal corruption charges against medical device officials who they say bribed state hospital doctors to promote the company’s products. The charges were waged against officials with DePuy Orthopaedics, a subsidiary of consumer health products giant Johnson & Johnson. Court documents allege that five DePuy officials engaged in bribery and money laundering deals between 1998 and 2006, during which DePuy paid eight Greek state hospital doctors more than $21 million. The doctors – most of whom are orthopedic specialists – have already been formally accused in the same case. No specific products were cited, however DePuy and Johnson ... Read More