Zimmer Hip Problems Not Like Other Hip Problems
Widely publicized Zimmer hip problems, more specifically, problems associated with a component called the Durom Cup, appear to be quite different in nature than complications associated with other hip replacement systems.
The Zimmer Durom Cup, an acetabular component first sold in the US in 2006, was briefly pulled from the market in 2008 after a prominent orthopedic surgeon voiced concerns about the effectiveness of the component’s fixative surface.
Zimmer hip problems include component shifts and dislocation
A “monoblock” acetabular component, the Durom Cup is designed to bond to the acetabulum – hip bone – without the use of cement. In some cases, the device was found to cause Zimmer hip problems such as migration – the component shifted in the hip bone – component loosening, and even dislocation.
After altering the surgical instructions that come packaged with the Durom Cup, Zimmer remarketed the device months after the suspension of sales. At that point, more than 12,000 people had already been implanted with the Durom Cup. Many of those patients have filed Zimmer lawsuits to win compensation for Zimmer hip problems and to pay for costly revision surgery.
Today, hip replacement complications are very much in the news, spurred, perhaps, by last August’s massive DePuy ASR hip replacement recall, which affected more than 90,000 people worldwide. Many of those hip recipients have now joined litigation against DePuy, a subsidiary of Johnson & Johnson. Recipients of DePuy’s Pinnacle hip replacement system also have cause for concern.
DePuy hip metallosis leads to more serious problems
Both DePuy systems involve a metal-on-metal ball-in-socket mechanism that has been found to shed dangerous metallic particles into surrounding tissue and the bloodstream. This phenomenon, called “metallosis,” can damage tissue, cause blood poisoning and may even cause certain cancers.
On May 6, the FDA ordered that all manufacturers of metal-on-metal hip implants undertake comprehensive studies to better understand the risks posed by the products they have in commerce. The FDA mandate is unusual, if not unprecedented.
Approximately 250,000 hip replacement procedures occur every year in the United States. Despite reports of Zimmer hip problems and complications involving other devices, there is no official replacement joint registry in the US, as is the case in many other developed nations.