An event regarding revision surgery involving a mako insert was reported.The event was confirmed as a revision implant sheet was provided for review.Method & results: device evaluation and results: not performed as product was not returned; medical records received and evaluation: no medical records were received for review with a clinical consultant; all devices were manufactured and accepted into final stock with no relevant reported discrepancies.Complaint history review: there have been no other similar events for the reported lot.Conclusion: the exact cause of the event could not be determined because insufficient information was provided.Additional information including operative reports, progress notes, x-rays and return of the device are needed to fully investigate the event.If further information becomes available or the product is returned, this investigation will be re-opened.Additional devices listed in this event: catalog: 180603, description: mdk tibial baseplate, lot: 26150810; catalog: unk_ofl, description: unknown cemented femoral component, lot: unknown.At this time, it cannot be determined which, if any of the reported devices may have caused or contributed to the patient's experience.Not returned.
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