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.

Taking Charge: A Blueprint for DePuy Hip Implant Recipients to Follow for Successful Recovery

Taking Charge: A Blueprint for DePuy Hip Implant Recipients to Follow for Successful Recovery

Introduction:

While the FDA began receiving complaints regarding the failure of hip replacement devices manufactured by DePuy Orthopedics (a subsidiary of Johnson & Johnson) for some time, there was not a DePuy hip extensive recall on the device until August of 2010. Many feel the recall should have come much sooner and that the company knew there were issues with the implant for a significant period of time before they issued the recall. Many of the patients who have been implanted with a DePuy hip replacement device later required a second surgery when their original implant failed. This DePuy hip implant failure has negatively affected the quality of life for its recipients.

“Hip” Definitions: A Discussion of Medical Terms Every DePuy Hip Implant Recipient Should Know

“Hip” Definitions: A Discussion of Medical Terms Every DePuy Hip Implant Recipient Should Know

Introduction
July of 2003 saw the worldwide introduction of the metal-on-metal hip replacement by DePuy, although these devices were not used for hip replacement surgeries in the United States until 2005. Johnson & Johnson, the parent company of DePuy, pushed the approval of the hip implant device through the FDA under an expedited process known as the 510(k). This process allows many medical devices to skip rigorous clinical trials when the manufacturer can show the device is substantially equivalent to another device which has already received approval. At the time of the 510(k) approval, DePuy claimed the ASR hip replacement device raised no new issues of safety or effectiveness.

Johnson & Johnson Takes $3 Billion Dollar Fourth Quarter Charge

Johnson & Johnson Takes $3 Billion Dollar Fourth Quarter Charge

Introduction
Johnson & Johnson, the parent company of DePuy Orthopedics recently took a fourth quarter charge of over $3 billion dollars related primarily to their voluntary recall artificial hip implants—the DePuy ASR Acetabular System and the ASR Hip Resurfacing System. The recall took place in August of 2010, after the FDA had received incident reports regarding the DePuy metal-on-metal hip implants for over two years. Approximately one in eight patients—and possibly more—will require a hip revision surgery to remove the faulty DePuy device and replace it with another hip implant device. Unfortunately, most patients have a longer recovery time and more medical issues related to the second revision surgery than they did with the first.

Recall of Artificial Hip Causes Johnson & Johnson 2012 Earnings Forecast to Dip

Recall of Artificial Hip Causes Johnson & Johnson 2012 Earnings Forecast to Dip

Introduction
The pharmaceutical giant, Johnson & Johnson, has been given a 2012 earnings forecast which is below the previous estimates present by financial analysts due to the number of DePuy hip replacements which were recalled. In fact, recent reports state Johnson & Johnson takes $3 billion charge for hip recall. In 2010 it was discovered that the DePuy metal-on-metal hip replacement devices were shedding metal fragments and Johnson & Johnson issued a recall for those particular hip replacements. The metal fragments which were shed into the body were found to cause disabling injuries in some recipients, and the toxicity from the chromium and cobalt debris can cause the surrounding tissues to suffer necrosis or death.

Things You Should Know About Johnson & Johnson’s and DePuy Orthopedics’ Attempts to Help Hip Implant Recipients

Things You Should Know About Johnson & Johnson’s and DePuy Orthopedics’ Attempts to Help Hip Implant Recipients

Introduction
DePuy hip implants were used widely throughout the world, beginning in 2003, and in the United States from 2005. Although concerns were raised regarding the safety of these hip implant devices, a recall by DePuy was not issued until August of 2010 when DePuy received data from the National Joint Registry showing the five year revision rate for the ASR hip replacement system was approximately 12-13%. This study appeared to show that the risks for revision surgery were highest among female patients who received the smaller ASR heads which were less than 50mm in diameter. The recall in 2010 was voluntary on the part of DePuy and Johnson and Johnson and the pharmaceutical giant has subsequently issued several field safety notices to physicians to enable them to help their patients whose health has been affected by the DePuy hip implant failure.

New Updates for DePuy Hip Implant Victims

New Updates for DePuy Hip Implant Victims

The DePuy ASR Litigation Status Conference

On January 23, 2012, the DePuy ASR Litigation Status Conference in West Palm Beach, Florida was held before Judge David Katz.  Judge Katz is the United States Federal District Judge assigned by the Multi District Litigation panel of judges to hear all pretrial matters in any DePuy ASR cases filed in federal court. 

Judge Katz met with the Executive Committee of the Plaintiffs’ Steering Committee for about an hour privately before he met with all attorneys in open court.  The Plaintiffs’ Steering Committee are the dozen or so lawyers Judge Katz assigned as leaders of all plaintiffs’ lawyers who have filed cases in the ASR litigation. The Plaintiffs’ Steering Committee is responsible for gathering evidence (Johnson and Johnson and others have turned over approximately 18,000,000 documents so far), taking depositions of fact and expert witnesses, legal analysis, submitting briefs to the court, and a variety of other tasks.