Friday, February 13, 2009

The Future of the Zimmer Durom Cup Replacement Hip Implant

By Maxwell Schmickman

The Zimmer Durom Cup Replacement component was used in over 12,000 hip replacement surgeries in the United States from its approval in 2006 through July, 2008. These devices are made of only one piece of material, and their design differs radically from the 3-part implants which were their predecessors. During the period of time from 2003 to 2006, hundreds of implant surgeries were successfully performed in Europe, and American physicians were impressed. Unfortunately, as many American patients started having problems with their implants, doctors lost their faith in them.

Patients started complaining of pain in their hips. Although there is some pain to be expected for the first few months after hip replacement surgery, Durom Cup recipients were starting to complain of problems well after the three-month recovery period. Doctors are now convinced that revision surgery will be needed in almost 5.7% of the patients who received the transplants prior to July, 2008.

In July, 2008 Zimmer voluntarily pulled their Durom Cup Replacement components from the American market and advised physicians not to use them. By August, however, the devices were back on the market and available to those physicians who completed a new Internet training program to learn the correct technique for implanting them. These new and improved techniques are supposed to cut the failure rate of the implant surgeries dramatically. However, the damage was already done, and many doctors had become skeptical about the Durom Cup Replacement to the point where they refused to take the extra training required for its use.

A lot of the unhappy patients who have experienced pain and suffering due to the loosening of their Durom Cup Replacements have filed lawsuits against the company. In addition, a group of stockholders in Indiana filed a class action suit stating that the company was negligent in informing investors about the problems in a timely manner. Even though the company did a lot of testing on the product and found no defects, they announced that they had set aside $47.5 million to pay these claims. They do admit that they were at fault for not offering adequate training to physicians who were using their product.

Patients who are experiencing unexplained hip pain more than three months after having hip replacement surgery, have loosening and slippage in their artificial hip implant, or require hip replacement revision surgery are being encouraged by product liability attorneys to file suit against the company. Per the laws in most states, patients are entitled to compensation for their pain and suffering, medical expenses, and lost wages due to defects in the Zimmer Durom Cup Replacements they received prior to July, 2008.

Since it was reintroduced to the American market in August, 2008, the Durom Cup Replacement device is again being used by about half of the physicians who used to perform the implants. While it is much too soon to know the success rate of these surgeries, the doctors who have performed them are confident that the new training they received will make a big difference. Other doctors are still skeptical and reluctant to take the risk of trying to use the cups again. If you are a candidate for hip replacement surgery, you'll need to read the information that's available and make your own decisions. Keep in mind, though, that even with a 5.7% failure rate, Durom Cup surgeries were still successful 94.3% of the time. - 16004

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