(b)(4).Multiple mdr's were filed for this event.Please see associated report(s): 0001825034 -2018 -10474, 0001825034 -2018 -10475, 0001825034 -2018 -10476, 0001825034 -2018 -10477.Reported event was unable to be confirmed due to limited information received from the customer.Device history record (dhr) was unable to performed, as the necessary product/lot code combination is unknown.Root cause was unable to be determined as the necessary information to adequately investigate the reported event was not provided.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.Not returned to manufacturer.
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