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Category Archives: DePuy Hip Replacement

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2009 – Seven Percent of Metal-on-Metal Hip Implant Patients Required Corrective Surgery

Posted in DePuy Hip Replacement

Survival rates for hip implants have not always been guaranteed.  Many times, hip implants fail from the weight they are supporting and correctional surgery may be required.  Better technologies have helped improve some of the problems seen with old school hip implants and the implants greater reliability and life expectancy has given users a better… Continue Reading

2010 – Metal-on-Metal Hip Implants Associated with Increased Metal Ion Blood Levels

Posted in DePuy Hip Replacement

Metal-on-metal hip bearings are a relatively new option for total hip arthroplasty (THA) and hip resurfacing.  They are preferred over other materials in that they aren’t as likely to wear down and won’t be subject to osteolysis.  Metal-on-metal hip bearings also pose issues.  One issue with these types of bearings is that they are prone… Continue Reading

2010 – 11% of metal-on-metal hip implants required revision surgery

Posted in DePuy Hip Replacement

Hip resurfacing procedures have only been performed relatively recently.  As such, there is limited information available regarding the long-term performance of the hip resurfacing implants.  With more information now available, there is a growing body of data with regards to the long-term outcomes of hip resurfacing procedures. One study followed up recipients of metal-on-metal hip… Continue Reading

2009 – Metal ions found in the blood of metal-on-metal hip replacement systems

Posted in DePuy Hip Replacement

Hip replacement using metal-on-metal bearings has only been performed for a little over ten years.  Clinical results have shown that the procedure is generally highly successful when performed properly, and the patient has been properly selected.  One of the issues with metal-on-metal bearings is the wear of the device.  Wearing down of the metal device… Continue Reading

2009 – Metal poisoning, other complications seen with metal-on-metal hip implant patients

Posted in DePuy Hip Replacement

Published in 2009, medical researcher Joshua J. Jacobs wrote a report titled “Metal on Metal Bearing Surfaces”, that outlines some of the problems currently associated with hip implants.  While metal-on-metal bearings is a popular option for repairing injured hip joints, it is the only option available for surface replacement of an injured joint.  While many… Continue Reading

1998 – High levels of metal ions seen in blood of ASR users twelve years prior to recall

Posted in DePuy Hip Replacement

Published in a 1998 edition of Journal of Bone and Joint Surgery an article titled “Metal Release in Patients Who Have Had a Primary Total Hip Arthroplasty.  A Prospective, Controlled, Longitudinal Study” by J.J. Jacobs et al. suggests that “in the long term, total joint replacement may be associated with adverse local and remote tissue… Continue Reading

2006 – Research shows dangers of metal-on-metal hip implants years before recall

Posted in DePuy Hip Replacement

Metal-on-metal hip replacements, particularly those manufactured by the Johnson & Johnson subsidiary DePuy Orthopaedics such as the ASR and ASRXL, have been associated with a high rate of device failure, requiring “revision surgery” – the surgical implantation of a new prosthetic hip joint. In a 2006 paper titled “Loosening and Osteolysis Associated with Metal-on-Metal Bearings:… Continue Reading

2010 – Wide Variety of Complications Seen with Metal-on-Metal Hip Replacements

Posted in DePuy Hip Replacement

Hip arthroplasty procedures have only been performed relatively recently.  As such, there is limited information available regarding the long-term performance of the hip resurfacing implants.  One of the primary issues in total hip arthroplasty (THA) is the bearing of the device.  Despite several long-term satisfactory results, polyethylene implants were still prone to various issues. Therefore,… Continue Reading

2010 – “Early failure of metal-on-metal bearings in hip resurfacing and large-diameter total hip replacement”

Posted in DePuy Hip Replacement

Hip replacement using metal-on-metal bearings is a relatively new procedure.  Clinical results have shown that the procedure is generally highly successful when performed properly, and the patient is healthy enough to receive the implant.  One of the issues with metal-on-metal bearings is wear of the device.  Wearing down of the metal device is potentially dangerous… Continue Reading

2008 – Metal-on-Metal Hip Implants Not Without Complications

Posted in DePuy Hip Replacement

The first ever hip plants were used back in the 1930’s by Dr. Philip Wiles.  Technology has greatly improved since Dr. Wiles used stainless steel implants but there are still health concerns surrounding hip implants.  Early implants had a relatively low chance of success due to available technology of the time, and while successful operations… Continue Reading

2009 – Metal-on-Metal Hips Associated with Pseduotumors

Posted in DePuy Hip Replacement

Author Y.M. Kwon, from the Nuffield Orthopedic Center in Oxford, England conducted a study titled “Analysis of Wear of Retrieved Metal on Metal Hip Resurfacing Implants Revised Due to Pseudotumours”.  Tiny particles of metal can break off from the implants and enter the bloodstream.  Elevated levels of metal in the blood can lead to severe… Continue Reading

Metal Toxicity and Metal-on-Metal Hip Replcement

Posted in DePuy Hip Replacement, Stryker Hip Replacement

Metal-on-metal bearings in hip resurfacing arthroplasty have been associated with prolonged periods of elevated metal ion circulation in the bloodstream.  Specific ions, such as chromium and cobalt are known to be particularly threatening to the general health of the patient, often times leading to symptoms associated with metal toxicity.  A recent study focused on the… Continue Reading

Danger of Metal-on-Metal Hip Replacements

Posted in DePuy Hip Replacement, Stryker Hip Replacement

Metal-on-metal (MOM) total hip replacement has been a commonly used approach to hip repair, and with this surgery the risk of adverse effects is always present.  These effects include osteolysis, or bone-decay, as well as toxicity due to the metals that release ions into the body.  Recently, ceramic-on-ceramic total hip replacement surgery has been considered… Continue Reading

Adverse Health Events Related to Metal-on-Metal Hip Replacements

Posted in DePuy Hip Replacement, Stryker Hip Replacement

Metal-on-metal hip replacement (MOM) was introduced in total hip replacement to avoid complications such as osteolysis, the process where bone marrow is not produced, causing weakness in joints and bone structure to occur, a phenomenon often times found in patients with conventional ultra-high molecular weight polyethylene bearings.  This ailment is oftentimes only symptomatic in giving… Continue Reading

Certain angle ratios of metal-on-metal hip replacements related to high levels of metal ions in the blood

Posted in DePuy Hip Replacement, Stryker Hip Replacement

Many factors affect the blood metal ion levels of patients after metal-on-metal hip arthroplasty.  While certain ions have found to cause a range of adverse events, others, such as chromium and cobalt have been found to be carcinogenic.  A current study by AlisterJ. Hart et al. focused on the main surgically-adjustable variable, the amount of… Continue Reading

Dangers of Chromium and Cobalt Ion Exposure in Metal-on-Metal Hip Replacement

Posted in DePuy Hip Replacement, Stryker Hip Replacement

A recent study conducted by Wolf-Christoph Witzleb et al. focused on the implications of the metal ions released through the expected corrosion that occurs after a metal-on-metal hip replacement or hip resurfacing.  Two of these metal ions, cobalt and chromium are known to have carcinogenic and mutagenic effects in patients with metal-on-metal hips, leading to… Continue Reading

High Levels of Dangerous Metal Ions in Blood after Metal-on-Metal Hip Replacement

Posted in DePuy Hip Replacement, Stryker Hip Replacement

A recent study conducted by Wolf-Christoph Witzleb et al. focused on the implications of the metal ions released through the expected corrosion that occurs after a metal-on-metal hip replacement or hip resurfacing.  Two of these metal ions, cobalt and chromium are known to have carcinogenic and mutagenic effects in patients with metal-on-metal hips, leading to… Continue Reading

Kidney Damage as a Result of Metal-on-Metal Hip Replacement

Posted in DePuy Hip Replacement, Stryker Hip Replacement

A recent study in Symposium posed the question of whether metal ions released from arthroplasty reach levels comparable to that of workers in heavy metal industries.  The metal ions are most commonly cleared through urine, meaning that high enough levels can lead to renal damage.  The study, published by Dr. Massimo Corradi et al. (2011),… Continue Reading

Metal Debris in Liver, Spleen of Majority of Patients with Metal-on-Metal Hip Replacement

Posted in DePuy Hip Replacement, Devices

A 2004 article published in The Journal of Arthroplasty has shown that tiny metal particles (less than one micrometer in diameter) can be found in over 73% of people who used a metal-on-metal hip implant.  This research, conducted by Robert M. Urban et al. is titled “Accumulation in Liver and Spleen of Metal Particles Generated… Continue Reading

Hip Replacements More Likely to Fail in Women than Men

Posted in DePuy Hip Replacement, Stryker Hip Replacement

This is from 02/18, but I forgot to post it back then.  Not sure what ramifications, if any, this will have for the various DePuy and Striker hip replacement lawsuits.  I’m certainly interested in speaking to anyone with a problem with their replacement hip regardless of gender. CHICAGO — Hip replacements are slightly more likely… Continue Reading

DePuy Hip Replacement Recall

Posted in DePuy Hip Replacement

Some types of medical products have to go through a special FDA approval process before they can be sold.  The manufacturers of those products are immune from suit due to a questionable Supreme Court decision.  Thankfully, the DePuy hip replacement components are not covered by that Supreme Court decision and individuals injured by those components… Continue Reading