Cmp- (b)(4).Reported event was confirmed, as visual examination show the thread form is fractured and missing.Circumferential grooves are seen near the fracture site.The diameter of the pin is conforming to print specifications.Device history record was reviewed, and no discrepancies relevant to the reported event were found.A definitive root cause could not 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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