Device evaluation per the exponent report: "the articulating surface of the polyethylene insert showed burnishing and multi-directional scratches.The endplates had evidence of damage consistent with impingement.Overall, the results of the stage i analysis are consistent with a device having impingement." the location of the impingement damage on the endplates is indicative of possible kyphosis, although it is possible that any of the damage seen during inspection could have been due to the removal process during revision.With the known information, no particular failure mode could be confirmed.Potential cause root cause was unable to be determined.This event could possibly be unknown patient, surgical or post-op traumatic factors.Dhr review per dhr review, the part was likely conforming when it left zimvie control.Device use this device is used for treatment.If additional information is obtained that adds value to the relevant content of this report, a follow-up report will be sent.
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