Pinnacle Hip Lawsuit Blog

Apr 12, 2013 at 15:50 o\clock

Metal Poisoning, Tissue Damage Help Cause Hip Implants Failure

The failure of hip replacements on a fast rate has led to several studies to help identify the cause of this problem, news reports say. The studies that were presented in the recent annual meeting of the American Academy of Orthopaedic Surgeons (AAOS) last March 2013 showed how these hip implants failed.

depuy pinnacle lawsuit

The possibility of tissue damage due to negative reaction of the tissue with the metal particles of the prosthesis were evident in most of the findings along with metal poisoning. Different surgeons in attendance were able to get a hold of several information coming from different studies that were presented in the said annual gathering.

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Tissue Damage and Metallosis Most Likely Cause of Failure for DePuy Pinnacle Recipients


Jul 13, 2012 at 22:41 o\clock

Hip Replacement Patients Report Increase of Hip Implant Loosening


 Surgeons have learned over the past decade that newer versions of hip implants, made with a metal ball that fits into a metal socket, such as the DePuy Pinnacle, have been failing at a higher rate than traditional hip implants made of ceramic or plastic parts, medical industry publications report. Typically, most hip implants fracture, loosen, or dislocate over a decade or two due to wear and tear. But many of these metal implants, designed to be more durable than traditional implants, are failing after five years or less.


While there are several problems associated with these artificial hip implants, the most painful one among the side effects involves a loosening of the hip implant, something that has been repeatedly documented through consumer complaints and FDA reports. Loosening of the hip replacement can actually happen over time, and usually causes problems with the normal function of the hip replacement. When a hip replacement is placed into the body, it is either press-fit into the bone, or cemented into position. Either way, it is fit tightly into the bone of the thigh (femur) and pelvis so that the implant cannot move. When the implant begins to loosen, the hip replacement will also begin to move in small amounts. If this happens the patient usually begin to feel pain.


The unfortunate part for the patients whose hip replacement has become loose, is that hip replacement revision surgery is one of the only ways to correct the loosening.The biggest problem with this is that, after revision operations, patients tend to recover less overall motion of the joint. The implant durability also declines with each revision.  It is because of this that surgeons avoid revision surgery unless it is absolutely necessary as to get the most of the implant already in the patient.


With increasing amount of complaints about metal-on-metal hip implants loosening prematurely, the United States food and Drug Administration (FDA) has, in 2010, ordered 21 manufacturers to conduct studies on patients who have received the implants. Included in the 21 manufacturers is DePuy and its DePuy Pinnacle hip replacement system. The FDA will then determine its course of action on metal-on-metal hip replacements according to the results of this test.


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