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Zimmer M/L Taper Hip Implant with VerSys Femoral Head

The Zimmer M/L Taper Hip Implant with VerSys Femoral Head may lead to significant health complications for some people. Problems may arise when certain combinations of metal components are used and these specific metal components come into contact with each other.

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Did you experience complications after a Zimmer M/L Taper Hip Implant?

Metal-Related Health Complications

It appears Zimmer’s M/L hip taper or M/L hip taper with Kinectiv technology combined with Zimmer’s VerSys femoral head may lead to metal-related complications, such as corrosion and trunnionosis. It is possible for metal particles to leach into or destroy surrounding tissues, creating problems.

The hip taper portion of the implant is composed of a titanium alloy. The femoral head portion of the implant is composed of a cobalt-chromium alloy. (1)

Both the metal taper and the metal femoral head are used together in the thighbone, or femur, to replace parts of the hip joint. These hip implant parts rest against each other, however, and one is a stronger metal than the other. This may explain why corrosion of the metals can occur. This trunnionosis may lead to other metal-related complications, including: (2)

  • Metallosis, inflammation and other metal-related reactions of the body’s tissues to metal particles.
  • Adverse local tissue reactions, including pseudotumors.
  • Necrosis (tissue death) surrounding the implant.
  • Osteolysis (bone damage or degradation) surrounding the implant.

Any of these complications can lead to implant failure. In these cases, revision surgery may be necessary.

Zimmer Hip Recalls

Zimmer has not recalled its M/L hip taper or M/L hip Taper with Kinectiv Technology due to metal-related complications when used with Zimmer’s VerSys femoral head.

However, in 2015 Zimmer voluntarily recalled its M/L Taper Hip Prosthesis with Kinectiv Technology. Zimmer reported the reason for the recall was “higher than allowed cytotoxicity levels found with the product.” (3) The U.S. Food & Drug Administration classified this device recall as Class 1. (4)

This most serious type of FDA recall was issued because there was the “reasonable probability” a patient could suffer an “adverse biological response.” (5)

In recent years, Zimmer has issued other product recalls as well. However, so far, none has been for the Zimmer M/L taper or Zimmer M/L Taper with Kinectiv Technology regarding adverse events when used in conjunction with Zimmer’s VerSys Femoral Head. (6) (7) (8)

Zimmer M/L Taper Hip Implant with VerSys Femoral Head

When you undergo total hip replacement surgery, you typically receive three primary parts: a socket implant to replace the lining of the acetabulum (part of the pelvis), a ball to replace the top of the femur, and a stem, which sits in the femur. (9) (10)

To function correctly, typically the replacement ball is attached to a separate neck piece (known as a modular neck) or the top of the stem itself. (11)

With the Zimmer M/L Taper and Zimmer M/L Taper with Kinectiv Technology, when coupled with the VerSys Femoral Head, corrosion of the cobalt-chromium alloy of the femoral head with the titanium alloy of the femoral neck’s trunnion could potentially be produced. This could happen when the two parts move against each other (known as trunnionosis), potentially causing significant metal-related problems for patients. (12)

However, some patients have experienced medical complications when Zimmer’s M/L Taper or M/L Taper with Kinectiv Technology Hip implants have been combined with its VerSys Femoral Head. These complications can be significant. (13) (14)

Get Medical Advice

Before undergoing any hip replacement procedure, you should seek recommendations from your doctor regarding the safest, most effective hip implants for you.

If you need hip revision surgery after you have a hip implant, you may also want to consult an attorney regarding any potential defect in your implant.

  1. Canham, C.D., et al. (2017, April 15). Corrosion and adverse local tissue reaction after total hip arthroplasty with a modular titanium alloy femoral neck. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712034/
  2. Mistry, J.B., et al. (2016, February 11). Trunnionosis in total hip arthroplasty: a review. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4805640/
  3. U.S. Food & Drug Administration. (2015, May 18). Class 1 Device Recall. Zimmer M/L Taper Hip Prosthesis with Kinectiv Technology. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRes/res.cfm?ID=137182
  4. U.S. Food & Drug Administration. (2018, December 11). Medical Device Recalls, Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRES/res.cfm?start_search=1&event_id=71272
  5. U.S. Food & Drug Administration. (2015, May 18). Class 1 Device Recall. Zimmer M/L Taper Hip Prosthesis with Kinectiv Technology. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRes/res.cfm?ID=137182
  6. U.S. Food & Drug Administration. (2018, March 1). Class 2 Device Recall. Zimmer M/L Taper Hip Prosthesis, 7711 Series. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRES/res.cfm?id=162236
  7. U.S. Food & Drug Administration. (2014, May 23). Class 2 Device Recall. Zimmer M/L Taper Hip Prosthesis with Kinectiv Technology. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRES/res.cfm?id=127546
  8. U.S. Food & Drug Administration. (2018, May 30). Class 2 Device Recall. Zimmer M/L Taper Hip Prosthesis with Modular Neck Technology. Retrieved from https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfRes/res.cfm?ID=164813
  9. U.S. Food & Drug Administration. (2018, November 16). General Information about Hip Implants. Retrieved from https://www.fda.gov/MedicalDevices/ProductsandMedicalProcedures/ImplantsandProsthetics/MetalonMetalHipImplants/ucm241594.htm
  10. U.S. Food & Drug Administration. (2018, November 16). The Hip Joint. Retrieved from https://www.fda.gov/MedicalDevices/ProductsandMedicalProcedures/ImplantsandProsthetics/MetalonMetalHipImplants/ucm241593.htm
  11. U.S. Food & Drug Administration. (2018, November 16). General Information about Hip Implants. Retrieved from https://www.fda.gov/MedicalDevices/ProductsandMedicalProcedures/ImplantsandProsthetics/MetalonMetalHipImplants/ucm241594.htm
  12. United States Judicial Panel on Multidistrict Litigation. (2018, October 3). In Re: Zimmer M/L Taper Hip Prosthesis or M/L Taper Hip Prosthesis with Kinectiv Technology and Versys Femoral Head Products Liability Litigation. MDL No. 2859. Transfer Order. Retrieved from https://www.jpml.uscourts.gov/sites/jpml/files/MDL-2859-Transfer-Order-09-18.pdf
  13. Ibid.
  14. United States District Court. District of Minnesota. (2018, May 18). Judith Harms and Samuel Harms, Plaintiffs, v. Zimmer, Inc., and Zimmer Holdings, Inc., n/k/a Zimmer Biomet Holdings, Inc. Complaint and Jury Trial Demand. Retrieved from https://jc6kx1c9izw3wansr3nmip8k-wpengine.netdna-ssl.com/wp-content/uploads/2018-5-18-kinectiv-harms-complaint.pdf