(b)(4).Visual examination of the returned product identified signs of repeated use (nicked and gouged) and the dove tail feature is damaged on one side with a piece fractured off.All pieces were not returned.Review of the supplier device history record(s) identified no deviations or anomalies during manufacturing.This complaint was confirmed by evaluation of the returned device.A definitive root cause cannot be determined with the information available.No corrective actions, preventive actions, or field actions resulted after investigation of this event.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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