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Patients who received a DePuy ASR hip replacement face a high risk of hip failure or other complications due to problems with the design of the metal-on-metal hip implant. This could cause thousands of people to experience devastating hip pain and potentially require additional surgery to replace the DePuy ASR hip implant.
DEPUY ASR LAWSUIT STATUS: A recall for the hip implant was issued in August 2010, nearly a year-and-a-half after the first lawsuit over DePuy ASR hip problems was filed. Potential DePuy ASR hip lawsuits are being reviewed by product liability lawyers for individuals throughout the United States.
MANUFACTURER: DePuy Orthopedics, a unit of Johnson & Johnson
OVERVIEW: The DePuy ASR Hip System is a metal-on-metal hip replacement device, which has also been used as part of a hip resurfacing system outside of the United States.
Data has suggested that the DePuy ASR hip failure rate at five years is between 12% and 13% (one out of every 8 patients), and may be even higher among women and those who received a device with a smaller head (under 50mm). With over 90,000 of the DePuy metal hips sold, this means that more than 11,000 people with likely experience problems with the DePuy ASR hip resulting in the need for revision surgery.
DEPUY ASR HIP REPLACEMENT PROBLEMS: According to FDA Adverse Event Reports, more than 400 reports involving DePuy ASR hip problems have been received by the federal regulatory agency since the start of 2008. Patients could experience a variety of symptoms, such as:
- Hip Pain
- Swelling of the Hip
- Problems Walking
This could be signs of a problem with the DePuy ASR Hip, such as loosening of the hip implant, fracture of the bone around the implant, or dislocation of the two parts of the hip implant that move against each other.
It appears that the complications with the DePuy ASR hip may be linked to defects in the design of the hip implant. Orthopedic experts have suggested that the component has a narrow window for proper placement, which could explain the higher-than-expected DePuy ASR hip failure rate when compared with other types of hip replacement implants.
Problems with metal-on-metal hip implants like the DePuy ASR have also been associated with issues caused by metal particles that could shed into the body as the hip implants wear down, potentially causing complications.The metallic debris could damage the tissue and bone surrounding the hip implant, potentially causing a loosening of the hip. Last year, U.K. researchers studied 660 patients who received DePuy metal-on-metal hip implants and found that 3.4% suffered from adverse reactions due to metal debris.
DEPUY ASR RECALL: On August 26, 2010, DePuy Orthopaedics announced the recall of DePuy ASR XL Acetabular Hip System and DePuy ASR Hip Resurfacing System implants, after confirming that they have an unreasonably high failure rate.
According to 2010 data from the National Joint Registry of England and Wales, the DePuy ASR Hip Resurfacing System had a revision rate of 12% at five years after surgery and the DePuy ASR XL Acetabular System had a revision rate of 13%. This means that during the first five years after a hip replacement with the DePuy ASR hip, at least 1 of 8 patients can expect to experience hip failure requiring painful and expensive hip revision surgery. In addition, with more than 90,000 DePuy ASR Hips sold worldwide, over 11,000 people could require additional hip replacement surgery due to the defective design of this implant and DePuy’s failure to take steps to remove it from the market earlier.
Shortly after the DePuy ASR was introduced in 2005, reports of complications and failures began to surface early after the implant. According to Adverse Event Reports received by the FDA, there were nearly 100 reports in 2007, over 200 in 2008 and over 300 in 2009. The vast majority of these reports (over 90% of those reported in 2009) involved the need for a surgical hip revision after a DePuy ASR hip replacement.
Although many experts believe a DePuy ASR recall should have been issued earlier, the manufacturer failed to take steps to protect consumers and continued to sell the defective device. DePuy Orthopaedics did not acknowledge until March 2010 that there was a higher-than-expected failure rate with DePuy ASR hip implants, and did not recall DePuy ASR hip replacement implants until August 2010.
DEPUY ASR HIP LAWYERS: Since March 2010, the number of DePuy ASR hip lawsuits have steadily grown. However, following the recall, DePuy ASR hip lawyers expect the number of cases to increase dramatically in the coming months as patients discover that they may be experiencing problems as a result of the defective design of the hip implant.