An event regarding revision surgery involving an adm liner was reported.The event was confirmed.Method & results: device evaluation and results: visual inspection: the reported device was not returned; however, photographs were provided for review.As per a review of the photographs by a clinician {.} the explanted adm bearing and femoral head have no obvious pathology, at least no visible corrosion on the macroscopic explant view.{.} material analysis, functional and dimensional inspections could not be performed as the device was not returned.Medical records received and evaluation: a review of the provided x-rays by a clinical consultant indicated: cup malposition has contributed to impingement between stem neck and cup rim causing stem neck damage with osteolysis around both stem and cup with periprosthetic fracture in the proximal femur requiring revision surgery with fracture stabilization.Device history review: could not be performed as lot code information was not provided.Complaint history review: could not be performed as lot code information was not provided.Conclusion: the exact cause of the event could not be determined because insufficient information was provided.Additional information including lot details 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.
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