This follow-up report is being submitted to relay additional information.The returned tasp exhibits signs of repeated use (nicked or gouged) and is fractured on the anterior side of the post, all pieces not returned.The dhr was reviewed and no discrepancies relevant to the reported event were found.Medical records were not provided.Evaluation of the returned device identified the fracture was consistent with the tasp fractures analyzed in a zrm.The zrm identified that the common failure modes for the tasp devices include either bending overload or low cycle fatigue culminating in bending overload as evident by the presence of hackle marks, river lines and striations features on the fracture surface.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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