Zimmer NexGen Knee Replacement and Failure
In 2010, a study by two Rush University orthopedists presented ant the AAOS Conference noted an increased failure rate of the Zimmer NexGen CR-Flex knee replacement system as compared to the industry standard rate. The problem may be in the cementless femoral compenent; in a cementless device, the component is attached to the femur or thigh bone without cement and relies on natural bone growth to secure the device. Failure of the device to attach may result in the component to loosen or detach. While there has not been a recall or a specific defect noted, in the study, Drs. Berger and Della Valle noted that of 108 patients evaluated, there was a failure rate of 9% and a loosening rate of 36%. The failure required a knee replacement revision.
Patients with failed knee replacement devices may experience pain, making walking and activity difficulty. They also may require a revision before a reasonable period of time for the device's shelf life. While medical devices are not expected to last forever, a total knee replacement has an expected life of approximately 15 years. A failure before this time period may indicate a problem with the device.
If you experienced a total knee surgery that requires a revision, infection or other problems, you may have a claim for damages. Please contact knee device lawyer Mike Sudekum for a free discussion of your legal rights.