The aim of the work to compare between the effectiveness and safety of ultrasound-guided superior laryngeal nerve block through surface injection of local anesthetic solution on the thyroid cartilage and ultrasound-guided traditional superior laryngeal nerve block on quality of airway anesthesia for awake fiberoptic intubation in patients with limited neck mobility undergoing cervical spine fixation.
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the time taken to perform block
Timeframe: During surgery, upon performing block