Metal Hip Side Effects

Trunnionosis—Once Again, Proof That Metal and Hips Don’t Mix

December 12th, 2018

Thirty years ago, trunnionosis surfaced as a diagnosis to characterize corrosion and wear occurring in hip replacements at the head-neck interface that connects with the thigh bone (femur). Historically, orthopedic surgeons often found corrosion or wear associated with hip implant failures in the area of the hip bone (acetabulum), but not the femur. More recently, however, doctors are frequently finding hip failures resulting from trunnionosis occurring at the femoral head-neck junction of the device. Statistics confirm the rise of trunnionosis as a diagnosis in cases of hip implant failures.

Studies suggest that the recent increased findings of trunnionosis in hip implant failures result from the metal materials used in newer hip replacement devices. Next generation metal hip products like the Zimmer M/L Taper femoral stem and the Stryker LFIT V40 femoral head are contributing to the rise in trunnionosis found in patients. This usually leads to a painful hip revision surgery. These artificial hip systems consist of a stem attached to a round head that mimics the body’s natural cup system, which allows leg movement.

Similar to earlier developed metal-on metal-hip implant systems, toxic metals released from the corrosion and wear caused by products like the Zimmer M/L Taper and Stryker LFIT V40 lead to adverse metal reactions, such as metallosis and pseudotumors.  Metallosis causes a variety of medical complications, including bone and tissue damage. Pseudotumors result from the body’s attempts to repair the area around the device, creating a buildup of fluid in the pelvic cavity. Both constitute classic diagnostic signs of a hip implant failure caused by metal-on-metal wear or corrosion.  In almost all cases, this necessitates a painful and expensive hip revision surgery, followed by a long period of recovery.

Sadly, the familiar story of defective metal-on-metal hip replacement devices now surfaces again with newer products like the Zimmer M/L Taper and the Stryker LFIT V40. These manufacturers have refused to learn from their past mistakes with older metal-on-metal hip replacement systems and must be held accountable.  If you or a loved one has suffered from the harmful side effects of metal hip implant products, the defective hip attorneys at the Yost Legal Group can investigate your case and help you obtain the justice you deserve. For a free consultation, please call us at 1-800-YOSTLAW.

History Repeats Itself: MDL Created for another Defective Zimmer Metal on Metal Hip Replacement X-Ray of Hip

In recent years, federal MDL’s (Multi-District Litigations) have been created for a large number of defective metal-on-metal hip replacements, including Smith & Nephew’s BHR and R3;   Stryker’s Rejuvenate, ABG II and LFIT V40; as well as many others. In 2010, a large number of cases involving Zimmer’s defective metal-on-metal Durom Cup hip replacement system were consolidated in a federal court MDL in New Jersey. Eight years later, because of high failure rates associated with its…

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Metal on Metal Hip Replacements Linked to Serious Neurological Side Effects X-Ray of hip implant

A 2017 Health Watch study reported that elevated blood metal levels from metal-on-metal hip replacements are toxic to the brain. The findings of this research confirm an alarming and previously unknown risk of metal-on-metal hip replacements known as Arthroplasty Cobalt Encephalopathy (ACE).  This condition includes a number of serious neurological side effects, including mood swings, tremors, fatigue, balance issues, vision and hearing loss, as well as other cognitive problems. Since the introduction of metal-on-metal hip…

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Stryker LFIT V40 Update

In August 2016, Stryker recalled its LFIT V40 femoral head hip implant based on higher than expected taper failure rates.  A taper lock failure occurs when the femoral head of the hip implant comes loose from the stem of the hip implant. Many people implanted with this faulty device suffer from severe pain, inflammation, loss of bone strength and mobility, and difficulty in walking. In some cases, excessive metal debris from the components causes an…

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Another Stryker Hip Recall: LFIT V40

The reputation of medical device manufacturer Stryker Corporation has been called into question in the past, after having to recall two of its metal hip replacement systems in 2012. More recently, the company once again faces criticism and outrage for its negligence in distributing yet another defectively designed hip replacement system. On August 29, 2016, Stryker sent an Urgent Medical Device Recall Notification Letter to all surgeons who implanted the LFIT V40 femoral head as…

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