DePuy Hip Recall – Dealing With The High Failure Rate

DePuy Hip Recall Dealing With The High Failure Rate

A hip prosthesis manufactured by Johnson & Johnson (JNJ) DePuy unit falls short of its expectation in the United Kingdom as frequent as 49 percent of the time, or four times what the company cited DePuy hip recall in 2010, a British orthopedic group stated. The British Hip Society and the British Orthopedic Association affirmed this week that data on the ASR XL Acetabular from four surgeons show that the rate of revision operations has gone up from 21 percent after four years to 49 percent within just six years.

"It's probably the best indicator so far of what the failure rate is likely to be," John Skinner, an orthopedic surgeon and president of the group's authority on metal bearing hips, declared in an interview over the phone. "As far as I can tell, it's reliable." Skinner said that the information has not been peer-reviewed as the publication requires.

The DePuy hip recall encompasses the ASR XL and the ASR hip resurfacing system in August 2010. During that time, the company mentioned unpublished data from the National Joint Registry for England and Wales saying that 13% of ASR XL patients required revision surgery in five years, and 12% of patients with resurfaced hips required second operations also within five years. Both devices utilize balls of metal and sockets to replace the unhealthy hips. The surgeons did not report on the resurfacing system in the report.

The plaintiffs have introduced product liability, negligence and failure to warn claims against DePuy for the failed devices, and seek out medical expenses, lost wages and damages for their pain and suffering. In excess of 350 lawsuits have been combined in federal court in Ohio, and over 220 are pending in California state courts. Another collection of cases are pending before a court in New Jersey.

The DePuy hip recall is the result of a defect in the hip implant that has been known for years. The device emits or throws off metal ions. These metal ion particles can be so small that they can pass through cells in the human body and migrate throughout the body. The metal ions are composed of chromium and cobalt and cause damage to cell tissue. When the ions accumulate around the hip joint the cell damage to the tissue around the joint may results in vasculitis, pseudotumors, and necrosis. The damage to the tissue is ongoing. Thus the need for removal and replacement, or "revision" of the DePuy ASR hip implant. These revisions of metal on metal hip implants have been shown in studies to have a lower success rate and be more complicated and this may be due to the tissue damage to the joint.

The statement by the British surgeons "suggests that DePuy has a bigger problem on its hands than it has acknowledged," said Lexi Hazam of Lief Cabraser Heimann & of Bernstein LLP in San Francisco, who represents clients in trial of hip DePuy hip recall lawsuits.

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