Patients who suffer from pain after hip replacement surgery with a metal hip implant could be suffering from a complication known as a pseudotumor, according to a study by Dutch researchers.
The study was published in the June 2012 British edition of the Journal of Bone and Joint Surgery. The researchers examined the records of 119 patients who underwent metal-on-metal total hip replacement from 2005 to 2007.
Of those patients, 108 underwent imaging studies as a follow-up exam an average of 3.6 years after surgery. In those patients, 42 were diagnosed with a hip pseudotumor, a rate of 39 percent.
This higher rate of occurrence of hip pseudotumor in those patients was far higher than had been previously reported, the researchers noted. Some sources had reported rates as low as one to four percent. The researchers said the higher rate is a cause for great concern.
Furthermore, 13 of the patients had such severe hip replacement surgery complications that they had to undergo revision surgery to replace their metal-on-metal hip implant with a different implant that used polyethylene components.
The researchers also noted a higher instance of pseudotumors among patients who showed elevated levels of metal ions in their blood, or metallosis, brought on by their implant. Patients with these higher levels of metal ions were four times as likely to develop a hip pseudotumor than those with lower ion levels.
A pseudotumor is a growth of tissue around a joint, other than cancer, scar tissue, or bursa. Symptoms of pseudotumors can include pain, swelling, clicking and subluxation (a partial dislocation of the joint).
The study’s authors commented that symptoms like swelling, clicking, and pain after hip replacement that are severe enough to require revision surgery could be a sign that there may be a large pseudotumor present with extensive destruction of tissue in the area.
Metal-on-Metal Hip Implant Lawsuits
Pseudotumors are one of several possible hip replacement surgery complications that have led to a huge amount of litigation over metal-on-metal hip implants. Thousands of plaintiffs in these hip implant lawsuits allege that their hip implant surgery complications resulted from defective design of their implants.
Some plaintiffs report suffering from more than just pain, reporting hip implant surgery complications including inflammation, swelling, or loss of mobility. Some report loosening of the artificial joints. Certain cases have been severe enough to require revision surgery to replace the implant.
The elevated levels of metal ions that the researchers noted in their study are also at issue in some of these hip implant lawsuits. Plaintiffs say that some metal-on-metal hip implants shed metal debris into the surrounding tissue, causing pain after hip replacement, death of the surrounding tissue, or failure of the implant.
This wave of litigation has already resulted in millions of dollars in settlements and jury awards. In December 2015 a jury awarded $11 million dollars to a former ski instructor who suffered soft tissue damage caused by metal that had shed from her hip implant. Manufacturer DePuy has reportedly agreed to pay $2.5 billion to settle claims over its ASR hip implants.
However, even after these and other positive results for plaintiffs, thousands of hip implant lawsuits still remain pending.
Do YOU have a legal claim? Fill out the form on this page now for a free, immediate, and confidential case evaluation. The hip implant attorneys who work with Top Class Actions will contact you if you qualify to let you know if an individual lawsuit or class action lawsuit is best for you. [In general, metal hip implant lawsuits are filed individually by each plaintiff and are not class actions.] Hurry — statutes of limitations may apply.
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Join a Free Metal Hip Replacement Class Action Lawsuit Investigation
If you or a loved one had a metal-on-metal hip implant that failed or caused serious complications, you may be entitled to compensation. Hip replacement lawsuits are being filed now against multiple companies, including Stryker, Biomet, DePuy, Zimmer, and Wright. See if you qualify to take legal action by filling out the form below.
An attorney will contact you if you qualify to discuss the details of your potential case at no charge to you.
- First Name*
- Last Name*
- Street Address*
- Apt. #
- City*
- State*
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- Zip Code*
- Phone*
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- What year did you/your loved one receive a metal on metal hip implant?*
- Was the original hip implant surgery after January 1, 2009?*
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- Did you/your loved one need revision surgery?*
YesNo
- If applicable, what year did you/your loved one have your original hip implant replaced?
- Please select which symptoms you or your loved one were medically diagnosed with:*
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Failure of the metal on metal hip implant requiring early replacement.
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Dislocated Hip.
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Leaking of toxic substances in your bloodstream from your hip implant like chromium or cobalt.
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Cancer.
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Degenerative Heart Disease or Cardiomyopathy.
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Loss of bone strength or structure which can result in bone fractures.
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Tissue death for any tissue surrounding the implant.
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Non-cancerous tumors or pseudotumors around the hip implant.
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Cobalt poisoning.
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Metallosis or metal poisoning due to chromium or cobalt particles from the hip implant leaking into nearby tissue or the patient’s bloodstream.
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Not Listed (please detail the symptoms in the comments section if this is selected.)
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- ¿Necesita un orador español?
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- No
- Please enter any additional details you would like the staff reviewing your submission to know.*
- I understand and agree that submitting this form does not create an attorney-client relationship and that the information I submit is not confidential or privileged and may be shared.*
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Yes
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