The dhr was reviewed for this device and it was recorded as being manufactured to specifications.After a review of the immediate post operative films and the films at the time of the occurrence by rti surgical's medical advisor as well as a review of the returned devices, the most likely cause of this occurrence was the placement of the screw during the initial surgery allowed for the dissassociation of the screw yoke potion.If further information becomes available, pioneer surgical will update this report.It is unknown the patient's information beyond the sex.
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(b)(6) reported incident - approximately 6 weeks post-op, the patient reported pain due to a 2 level surgery from l4 to s1 with a tlif approach with cage on the left side from l5/s1.It was discovered through x-ray that head of the screw at s1 on the right side popped off.Revision surgery was conducted on an unknown date, and type of reconstruction is undetermined as of reporting date.
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