Reported event: an event regarding elevated ion levels involving an unknown stem was reported.The event was not confirmed.Method & results: product evaluation and results: visual, dimensional, functional inspection, and material analysis were not performed as the item was not returned.Clinician review: not performed because no medical records or x-rays were made available for evaluation.Product history review: a complaint history review could not be performed as the device was not properly identified.Complaint history review: a complaint history review could not be performed as the device was not properly identified.Conclusions: the event could not be confirmed, nor the root cause determined because the devices were not returned for evaluation and insufficient medical information was provided.Further information such as medical documentation and the return of the devices are needed.If the devices and/or additional information are received, this investigation will be reopened and re-evaluated.Product surveillance will continue to monitor for trends.Not available.
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