To permit early recognition of possible spinal cord trauma due to spinal distraction with Harrington rod instru-mentation, 20 patients were awekened intraopartively in Hacettepe University Medical Faculty.
Droperidol and Fentanyl were used for anesthesia for all patients. The reliance of this procedure was investiag-ted by noting the time between spinal distraction and obtaining motor response and by comparing with the post-operative neurologic condition.
One patient with an unusual complication-transient cortical blindness (Anton Syndrome), was also discussed.
Keywords: Harrington instrumentation, spinal monitoring, wake - up test.