Additional info: d4, d10, g7, g9, h2, h3, h4, h6, h10.Results of investigation: it was reported that a revision surgery was performed due to tibial plateau necrosis.The associated journey ii uni tibial base plate, used in treatment, was not returned for evaluation.Therefore, the product analysis could not be performed.The review of manufacturing records was conducted and it did not reveal any deviation from the standard manufacturing processes.A review of the complaint history for the listed part revealed no prior complaints for the listed failure mode with the same batch number.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.A relationship, if any, between the device and the reported incident or adverse event could not be corroborated.The revision operative notes submitted with the adverse event forms were reviewed and unless noted do not contribute to the clinical investigation.Per the documents received, the issue was resolved with a revision to a total knee.No further medical assessment is performed at this time.A review of risk assessment revealed the post-operative issue is previously identified in the possible adverse events.Possible causes could include but not limited to patient medical history, age of patient or traumatic injury.Based on this investigation, the need for corrective action is not indicated.No further investigation is warranted for this complaint; however we will continue to monitor for future complaints and investigate as necessary.Should the device or additional information be received, the complaint will be reopened.We consider this investigation closed.
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