This follow-up report is being submitted to relay additional information.Concomitant medical product: persona femur trabecular metal cr narrow left, catalog #42502206001 lot #62679524; persona articular surface fixed bearing cr left, catalog #42512000411 lot #62476426.Reported event was confirmed through review of operative notes provided.Left knee revision operative notes indicate painful left total knee replacement.During the revision, it was noted the implant did not show any gross, obvious loosening, but looked to have subsided anteriorly.Revision implants were noted as well-fitting with good stability with no interoperative complications noted.Device history records were reviewed and no discrepancies were found.As the patient was revised due to possible loosening of the tibial component, it is noted that a field action was conducted in which zimmer voluntarily removed the persona trabecular metal tibial implant from the field due to a higher than anticipated complaint rate for radiolucent lines and loosening.The device in question was implanted prior to this field action.Therefore, the root cause is tied with the design of the device.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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