The associated device was returned and evaluated.A visual inspection of the returned device could not confirm the stated failure mode.Scratches and wear were observed on the proximal, distal, and outer surfaces.Some deformation was also observed, mainly on the locking detail.The device was manufactured in 2017 and exhibits signs of wear.The lab analysis concluded that the root cause of the reported infection cannot be confirmed from this analysis.No material or manufacturing deviations were observed in the process of this investigation.The medical investigation concluded that, per complaint details, the revision/poly exchange was performed 2 weeks post implantation due to an acute post-operative infection, although the root cause of the infection is unknown.It was communicated that no further clinically relevant documentation will be provided.The patient impact beyond the reported revision secondary to an acute infection cannot be determined.Should the product evaluation/lab retrieval analysis provide insight into the reported acute post-operative infection, the assessment may be re-evaluated.A review of complaint history did not reveal additional complaints for the listed batch.A review of the manufacturing records did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.Should additional information be received, the complaint will be reopened and reevaluated.
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