Cervical spinal cord injury after thoracic spinal instrumentation: a case series.

Study Design: Retrospective case report of 2 cases.
Objective: To describe 2 cases of cervical spinal cord injury/vascular insult after posterior instrumentation of thoracic/thoracolumbar scoliosis.
Summary of Background Data: Spinal cord injury is an uncommon but well-documented complication associated with spinal deformity surgery. The midthoracic spinal cord is most vulnerable to these presumed vascular insults. Injuries above the level of instrumentation are rare.
Methods: In this report, we review the clinical histories of 2 adolescent females undergoing posterior spinal fusion with subsequent cervical spinal cord injuries.
Results: In both cases, intraoperative cervical alignment appeared neutral and all hardware appeared appropriately positioned. Spinal cord monitoring demonstrated changes in 1 patient but not in the other. With time, both patients improved clinically.
Conclusion: Cervical spinal cord injuries may occur after distal deformity correction.