Cases No Longer Reviewed for Recalled Zimmer Knee Replacements

As a result of several recalls and reports of problems, the lawyers at Saiontz & Kirk, P.A. previously reviewed potential Zimmer NexGen knee recall lawsuits on behalf of individuals throughout the United States who experienced problems with their implant.

Zimmer NexGen recalls have been issued for several different parts that may be used in the company’s complete knee replacement systems, including some Zimmer NexGen MIS and Zimmer NexGen LPS components. In addition, research has linked a high rate of problems to some Zimmer NexGen CR-Flex knee replacement components.

Potential cases were previously evalauted for individuals who received a recalled Zimmer knee replacement, and experienced complications that may include:

  • Unexplained Knee Pain
  • Problems Walking
  • Loosening of the Knee Replacement
  • Knee Replacement Failure
  • Additional Knee Replacement or Revision Surgery

New cases are no longer being accepted. This page is maintained for informational purposes only.


In 2010, Zimmer quietly issued recalls for Zimmer NexGen knee replacement components that may have been used in thousands of individuals throughout the United States.

Following reports of at least 114 Zimmer NexGen knee replacement problems, the manufacturer issued a recall for Zimmer NexGen MIS Tibial Components, NextGen TM Tibial Trays, NexGen MIS Modular Tibial Plates and Keels. The Zimmer NexGen MIS knee recall affected more than 68,000 knee components that were distributed throughout the United States.

The Zimmer NexGen MIS knee components were pulled off the market due to reports that suggested the knee replacements may be loosening and causing patients to undergo additional surgery to have the artificial knee replaced.

Several months prior to the recall, Zimmer sent a letter to healthcare facilities and customers who had bought the device instructing them to destroy or disregard all previous guides on the surgical techniques needed to install the implants and sent out revised surgical guides.

A separate Zimmer knee replacement recall was issued for some Zimmer NexGen Complete Knee Solution LPS components, including flex gender femoral components and femoral components of various sizes. Some of these recalled knee replacements were found to have non-conforming parts and inconsistent geometry.


A high number of failures and revisions associated with the Zimmer NexGen CR-Flex Porous Femoral knee replacement system, has led for some calls to remove these knee implants from the market as well.

In March 2010, a former Zimmer consultant presented data that reviewed the two year results of 108 knee replacements involving the Zimmer NexGen CR-Flex Porous. The research found that about 9% resulted in the need for revision surgery within two years and that 36% showed signs that the replacement knee was loosening.

Although the consultant called for Zimmer to recall the NexGen knee replacement parts, the company dismissed the concerns and attempted to place the blame for the problems on the prominent orthopaedics surgeon’s surgical technique.

In response to concerns about Zimmer’s handling of the concerns raised by their consultant, Senator Charles E. Grassley sent a letter to the company President and CEO in July 2010 requesting additional information on what the company was doing to respond to complaints and whether there were reports of problems with other products for which a Zimmer recall had not yet been issued.


According to allegations raised in a number of Zimmer knee replacement lawsuits, the manufacturer failed to adequately test and research their Zimmer NexGen knee system. As a result of a defective design and the company’s failure to issue a recalls for knee replacements that have proven to be dangerous, hundreds of people throughout the United States may have experienced unnecessary complications and problems.

Saiontz & Kirk, P.A. is no longer taking on additional Zimmer NexGen cases. This page is maintained for informational purposes only.