Corrected data: catalog number was corrected.Method: labeling review, risk assessment.The device was not returned, and a lot number was not provided, therefore no further inspection/evaluation of the device could be performed.According to the surgical technique guide, "for increased bone purchase, use the taps to prepare the pedicle canal.After attaching a xia 3 handle, insert the tap into the pedicle and into the vertebral body.With the pedicle pathway prepared, and the proper screw diameter and length determined, insert the screw into the pedicle using the appropriate screwdriver.The serrato polyaxial titanium self-tapping screws have serrations to ease screw insertion.However, in most cases, tapping is recommended." the most likely root cause is under-tapping of the screw hole, causing excess torque that fractured the pedicle.The patient's preexisting condition may have also contributed to the event.As the device was not returned, a definitive root cause could not be determined.Device not returned.
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