This report is being resubmitted for an incident that occurred earlier.The devices were not returned for evaluation as they were discarded by the hospital.Ct imaging was provided showing a t10- llllum construct with locking caps out of the screw heads at t1o and t11.The previous revisions indicate that significantflexion forces may have been present at the levels where the locking caps backed out.Addi tionally, breaking the tabs off of the screw head using the incorrect tequnique may have placed additional forces on the device, reducing the strength of the interconnection however , an exact cause of the reported issue could not be determined.The following sections have been updated for this supplemental report: b4, e1, g6, h2, h6, h10.
|