(b)(4).Report source: (b)(6).Complaint sample was evaluated and the reported event was not confirmed.Visual evaluation shows some damage to the instrument and some wear around the threads.However, the threads passed gage inspection.Device history record was reviewed and no discrepancies were found.Root cause was unable to be determined.A summary of the investigation has been sent to the complainant.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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