
There is a significant difference between the DePuy ASR XL Acetabular Cup System, which is used in total hip replacements, and the DePuy ASR Hip Resurfacing System, which is used in partial hip replacements. Both, however, have been linked to Depuy hip metal poisoning, hip replacement failure, and a need in some patients for revision surgery.
The DePuy ASR XL Acetabular Cup System is a metal-on-metal hip replacement system that necessitates the removal of the entire hip joint so that it can be replaced by this system. This is used in patients whose hip joints have already been eroded by conditions such as arthritis. It was one of the first metal-on-metal hip replacement systems on the market, and offered an apparently more flexible and longer-lasting option over plastic or ceramic and metal combination units.
The DePuy ASR Hip Resurfacing System is likely to be less controversial stateside as the device was never actually approved for use in the United States. It was actually in the midst of the Food and Drug Administration’s grueling approval process when the recall went through. The XL Acetabular Cup System was fast-tracked for approval due to its similarity to devices already on the market, but the Hip Resurfacing System involves newer technology and therefore had to endure the entire approval process. Though not approved in the United States, the device enjoyed relative popularity in Europe until a disproportionate number of patients began complaining of complications with the device.
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