This follow-up report is being submitted to relay additional information.The following sections were updated: b4, b5, d9, g3, g6, h2, h3, h6, h10 a visual inspection was carried out on the returned screws.The screws show heavy signs of use.There is marking on the screw heads.Both screws have fractured just below where the screw head meets the screw shaft.The complaint is confirmed.A determination cannot be made as to what caused the screw shafts to fracture.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 will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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