Pma/510k: this report is for unknown screws/unknown lot.Part and lot number are unknown; udi number is unknown.Complainant part is not expected to be returned for manufacturer review/investigation.Without a lot number the device history records review could not be completed.Product was not returned.Based on the information available, it has been determined that no corrective and/or preventative action is proposed.This complaint will be accounted for and monitored via post market surveillance activities.If additional information is made available, the investigation will be updated as applicable.(b)(4).Device was used for treatment, not diagnosis.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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It was reported that on an unknown date, the patient underwent an acoustic neuroma resection retrosigmoid procedure.Patient was implanted with an unknown plate and putty cement.The patient had medium size s/p resection of cp angle component complicated by inability to open iac because of severe cerebellar swelling, requiring decompressive cerebellar craniectomy two days later and was resolved.Patient outcome is unknown.This report is for unknown screws.This is report 3 of 3 for (b)(4).
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