One tapered screw vent implant was returned for inspection.Visual inspection revealed moderate wear and bone tissue attachment about the threaded region and vent.The internal drive feature is similarly worn from use.A device history review was performed and no related nonconformance¿s were noted.A complaint history search was performed using our complaint handling system and there were no additional complaints against this lot number.Appropriate documentation was reviewed and the following information was identified: instructions for use for tapered screw-vent, advent and trabecular metal implants 4869 rev 7-01/16.Zimmer one-piece implant system 7458a, rev.9/07.Warnings other relative warnings include steroid and anticoagulant treatment which may affect the surgical site, surrounding tissue, or patient¿s healing function.Exposure to long-term use of bisphosphonate drugs especially with chemotherapy may impact implant survival.Careful patient selection including consultation with the patient¿s physician is strongly recommended prior to implant treatment.Excessive mobility, bone loss, or infection may indicate the implant is failing.Any implant which appears to be failing should be treated or removed as soon as possible.If removal is necessary, curette any soft tissue from the implant site and allow site to heal as though it were an atraumatic extraction.Due to the metal conductivity, electrosurgery around the implants and intraoral abutment preparations without irrigation could result in tissue damage, patient injury and implant failure.A root cause for the complaint could not be determined with the information provided as the event cannot be recreated.Complaint is therefore non-verifiable.(b)(4).
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