Surgeon stated he was certain that the dissociation occurred due to the rod not being fully seated, and the driver not being able to overcome the force of the 6.0mm cocr rod.Surgeon further stated that when he performed the revision surgery on the patient, he observed that the rod was not fully seated.Upon utilizing the reduction tower to fully seat the rod into the pedicle screw, he observed that the rod did reduce further.He then final tightened the set screw using the torque limiting driver handle.
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