Metal-on-Metal Hip Implants Tied to Metallosis?

Corrosion, serious tissue reactions and metallosis are all possible side effects for recipients of the metal-on-metal hip implant. The safety of these devices has come under serious question with many recipients requiring revision surgery to remove the harmful devices. The DePuy ASR was recalled in 2010 due to studies showing it corroded much more quickly than other types of implants, most notably those made of ceramic and plastic. Once corrosion occurs in the metal hip implant the tissues surrounding the implant can become inflamed or soft tissue masses, lesions and necrosis can occur. The femoral heads as well as the acetabular cup of the DePuy hip implants are constructed of cobalt and chromium. The past few years have seen serious concerns regarding the metal chromium and cobalt particles which shave off when the femoral head and acetabular cup rub against one another during any activity. Once the levels of corrosion reach the unsafe stage the implant will likely have to be removed during a revision surgery.

Journal of Anthroplasty Study

A recent study in the Anthroplasty Journal compared the levels of corrosion on the femoral heads of the metal hip implants with those constructed of metal-on-polyethylene which implements a synthetic liner between the metal cup and femoral head. This liner acts as a buffer between the two metal pieces meaning there is less chance of the small metal ions slivering off and causing metallosis or metal toxicity in the bloodstream. The metal ions in the bloodstream can lead to kidney and liver disease or certain types of cancer, while the metal shards which lodge in surrounding tissues can lead to serious inflammation, tumors and even bone loss.

DePuy Litigation: Statute of Limitations Depuy Lawsuits

By Independent Staff Writer

In August of 2010 DePuy Orthopedics, Inc. recalled two of its most popular hip replacement systems—the ASR XL Acetabular and the ASR Hip Resurfacing System. The recall came on the heels of a study which indicated the five-year failure rate of these products was as high as one in every eight patients. Severe pain and metal toxicity in the blood have required many of those who received a DePuy hip replacement to have revision surgery to replace the defective implant. Although the DePuy Pinnacle system has not yet been recalled it utilizes the same metal-on-metal design as the ASR, and many of those who received the Pinnacle implant have experienced the same symptoms including loosening of the hip implant, unsafe chromium and cobalt levels in the blood and extreme pain.  

What is a Statute of Limitations?
All lawsuits filed in the United States have an expiration period known as the Statute of Limitations. After this time period has passed an injured party is prohibited from filing a recovery case. These statutes are meant to guard companies from being exposed to lawsuits for long periods of time as well as to ensure the suits are filed while evidence is preserved and memories are clear. Depending on the state you reside in the statute of limitations for product liability can range from two to six years.

DePuy’s “Offer”
Following DePuy’s recall of their hip implants the company stated that patients who met specific criteria might be able to have some of their medical costs covered. Before any type of reimbursement is issued, however, DePuy will review patient’s medical records to determine whether the patient is eligible for reimbursement. The problem with this is that DePuy states the patient’s medical records must confirm a revision surgery is definitively related to the ASR recall rather than another cause such as a “traumatic fall.” In other words, the company is likely to attempt to blame the failure of the hip implant on a pre-existing condition, an underlying disease, physician error or misuse, therefore providing DePuy with sensitive medical records could well mean you would receive no money at all for the defective product implanted in your body.

Overview of the Statute of Limitations for Recalled DePuy Implants
If you received a DePuy hip implant and have suffered medical issues as a result, you must be aware of how the legal statute of limitations may affect your right to pursue legal action for the harm done to you. It is urged that potential claimants exercise a measure of urgency in obtaining legal representation for a potential recovery suit. The DePuy hip implant recall occurred in August of 2010, and it is estimated it affected more than 90,000 devices worldwide. In most states—including Texas—personal injury and product liability statute of limitations are only two years, therefore those who reside in a state where a two-year product liability statute exists may only have until August of 2012 to file a DePuy hip implant suit. In order to ensure you preserve your rights, it is a good idea for any hip implant recipient who has experienced painful side effects to seek prompt legal action in the event revision surgery becomes necessary.