A comprehensive investigation was immediately initiated on receipt of the complaint.The product was not returned for evaluation, and thorough review could not be completed as no part number or lot number was provided.Since the broken implant was not removed from the patient, no evaluation could be performed.It was reported there was a non- union, and this may have contributed to the breakage.The x-rays provided indicate a breakage midway between the head and tip of the screw.There have been no prior reports of screw breakage of this implant.The exact cause of the reported issue could not be determined.Implant remains in patient.
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