Defective DePuy ASR and Pinnacle Hip Implants
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DePuy Orthopaedics recalled its ASR hip replacement implants in August, 2010, citing an unacceptably high failure rate as the reason for the recall. Now there are growing concerns over DePuy's Pinnacle hip replacement implant, which has not been recalled. ASR and Pinnacle are both metal-on-metal hip implants. Even when they seem to be functioning properly, these hip replacements release metal particles as they rub together. They can release enough metal to cause metal poisoning.
DePuy ASR Hip Implant Recall
The 2010 recall affected two ASR hip implant devices:
- ASR XL Acetabular System
- ASR Hip Resurfacing System
Only the ASR XL Acetabular System was approved for use in the U.S. According to DePuy the ASR hip implants have a five year revision rate of 12% to 13%, meaning that 12% to 13% of the hip implants fail and must be replaced surgically within five years of placement.
DePuy Pinnacle Hip Implant
DePuy's Pinnacle hip implants appear to have a design defect similar to the one which prompted the ASR hip implant recall. In 2010 the FDA received over 500 complaints about Pinnacle implants, many of which involved patients requiring revision surgery.
Defective Hip Implants
Defective hip implants can cause severe pain, tissue death, and damage so severe that the implant cannot be replaced and the recipient completely loses the use of that hip. Symptoms of a defective or failing hip implant can include:
- Lack of flexibility
- Reduced range of motion
- Difficulty walking
- General discomfort
- Pain in the hip, groin, or thigh
- Clicking sound
- Grinding feeling or sound
- Elevated levels of chromium or cobalt in the blood
Metal-on-Metal Implants Poisoning Patients
In the metal-on-metal design, when the parts of the hip implant rub together during normal use they create metal debris. The debris can cause serious damage to the tissues at the site of the implant. An even greater danger is metal poisoning. When a metal-on-metal implant is functioning properly it releases a small amount of metal into the bloodstream. A defective implant can release much larger amounts of metal resulting in severe metallosis and metal poisoning. Consequences of metal poisoning can include:
- Hearing loss
- Vision loss
- Shortness of breath
If you or a loved one has been injured by a Johnson & Johnson/DePuy hip replacement implant or any other defective medical device, please contact us for help finding a qualified defective product injury attorney in your area.