This follow-up report is being submitted to relay additional information.The following sections were updated/corrected updated: b4, b5, g3, g6, h1, h2, h3, h6, h10 no devices were received.Photograph provided confirms excessive wear and shows a piece of bearing as fractured off.Review of the device history record identified no deviations or anomalies during manufacturing.No compatibility issues were seen.Review of complaint history found no additional related issues for this item and the reported part and lot combination.X-ray evaluation by mmi states that medial compartment metal on metal appearance of a tka, likely the result of polyethylene wear.This complaint is confirmed.Root cause cannot be determined.No corrective actions, preventive actions, or field actions resulted after investigation of this event.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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