(b)(4).Customer has indicated that the product will not be returned to zimmer biomet for investigation as the product location is unknown.Reported event was unable to be confirmed due to limited information received from customer.Device history record (dhr) review was unable to be performed as the lot number of the device involved in the event is unknown.Root cause is 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 item #unknown/ unknown head/ lot # unknown.Item # unknown/unknown stem/ lot # unknown.Item # unknown/unknown liner/ lot # unknown.Multiple mdr reports were filed for this event, please see associated reports: 0001822565 -2020 -00995; 0001822565 -2020 -00996.
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It was reported the patient underwent right hip revision surgery 2 years post implantation due to pain and elevated metal ion levels.It was indicated during the revision procedure, there was evidence of metallosis and corrosion.The acetabular components were noted to have minimal wear; therefore, they were retained.Further noted, post revision improvement in overall cobalt levels and adls.Attempts have been made and additional information on the reported event is unavailable at this time.
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