The DePuy ASR hip replacements recalled in 2010 had numerous design defects that caused their alarmingly high failure rates, a biomedical engineering expert told the jury at the DePuy ASR hip recall trial in Los Angeles, California. DePuy Orthopaedic recalled the metal-on-metal hips because data showed that one in eight of the hip implants failed within a few years after surgery, though more recent statistics show even higher failure rates.

When asked, “is it your opinion that the ASR hip implant has multiple design defects that alone or together cause it to fail at a much greater rate than other hip implants?” The witness answered yes. The witness also agreed that “claimed benefits of the ASR were greatly outweighed by the risks of the implant” and that the device was defective, “causing it to fail, generating excessive amount of cobalt and chromium wear debris.”

Evidence From DePuy ASR Hip Implant Lawsuits Show Alarming Defects

The witness testified that the shape and design of the ASR hip implant’s metal cup contributed to problems with hip replacement failure. “It is susceptible to changing shape as it is forced into a patient’s pelvis,” he said. “If I have a larger object that has to go into a smaller hole, something has to move.”

In addition, he also cited examples of other hip implants on the market that had superior failure rates to the ASR hip. For example, a ceramic DePuy hip called the Duraloc had a 2 percent failure rate after five years. DePuy now expects the ASR hip replacement’s five year failure rate to be nearly 40 percent.

A previous testimony from a DePuy statistician showed that the company had seen data about high ASR hip implant failure rates. 28 percent of the hip implants failed at a hospital in Finland. Data from the national joint registry of England and Wales from 2011 showed that the ASR hip replacements had a seven year failure rate of over 27 percent.

More Than 10,000 DePuy ASR Hip Recall Lawsuits Underway

Currently, over 10,000 lawsuits have been filed against the manufacturer of the DePuy ASR hip implant, alleging that the manufacturer designed a faulty device and failed to warn patients about the risks of metallosis and high failure rates. Lawsuits seek compensation for victims’ medical expenses, lost wages, pain and suffering, and more. DePuy ASR hip recall lawsuits have been filed in state and federal courts.

If you were affected by the ASR hip recall and experienced adverse effects such as tissue damage, metal poisoning or hip replacement failure, speak to a DePuy ASR hip recall lawyer today to learn more about your legal rights and options. Call (877) 779-1414 for a free case review.

Published February 7, 2013 by