This follow-up report is being submitted to relay additional information.No product was returned for investigation, however, photos were provided of the device.Visual examination of the provided pictures confirmed the screw was fractured near the start of the bone thread section of the screw.Lot identification is necessary for review of device history records, lot identification was not provided.A definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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