SMITH & NEPHEW, INC. GEN II CEMENTED TIBIAL B/PLATE SZ 1 LEFT; PRSTHSIS,KNEE,PATLLOFMROTIBIAL,SMI-CNSTRAIND,CMNTD, POLYMER/METAL/POLYMER
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Catalog Number 71420160 |
Device Problem
Detachment Of Device Component (1104)
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Patient Problem
No Information (3190)
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Event Date 04/18/2018 |
Event Type
Injury
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Event Description
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It was reported that a revision surgery was performed due to the legion insert being disassociated from the baseplate.
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Manufacturer Narrative
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The associated legion ps high flexion insert and genesis ii tibial baseplate were returned and evaluated.A lab analysis conducted during this investigation noted that burnishing and scratches on the tibia baseplate and insert where they meet are likely caused by repeated motion between them.The locking mechanism on the insert is deformed, likely due to removal.The exact cause of dislocation could not be determined, based on the results of this investigation.A dimensional evaluation was attempted on the insert; the damage/deformation at several features of the poly insert would not allow for accurate measurement.The tibia baseplate measures to be within specification.Our investigation including a review of complaint history for the listed parts revealed no prior complaints for the listed failure mode with the same batch number.A review of the manufacturing records for the listed batches did not reveal any deviation from the standard manufacturing processes.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.No further investigation is warranted for this complaint; however we will continue to monitor for future complaints and investigate as necessary.We consider this investigation closed.Should additional information be received, the complaint will be reopened.
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