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Abstract Objective To investigate the clinical effects of using axial laminar screw in the operation of craniocervical junction in pediatric population.Methods From September 2009 to August 2016，12 pediatric patients who underwent axial laminar screwwere retrospectively analyzed.There were 8males and 4 females with an average age of 8.2 years old(range 2～14).The main manifestations were neck pain，limb weakness and numbness.8 cases hadupper cervical myelopathy.Preoperative imaging examination was performed to clear the spinal cordinjury and vertebral artery variability.The spinal cord function was evaluated by JOA scoring system.The average of preoperative JOA score was 13.3.Results All the 12 cases were followed up for 6 to 20 months (mean 10 months).Atlantoaxialfixation was performed in 7 cases and occipital cervical fixation in 5 cases.Among them，7 cases were treated with bilateral laminar screw and 5 cases with unilateral pedicle screw combined with pedicle screw fixation.No spinal nerve or vertebral artery injury was found.All cases had bony fusion.All 8 patients with preoperative neurological impairment had all the sensory abnormalities recovered，6 patients had normal muscle strength after operation，2 left hand grip strength decreased (grade 4)，and 1 left lower limb flexibility decreased.The JOA score at the last follow-up was 15.8.Conclusion In pediatric patients who are not suitable for pedicle screw placement，the short-term curative effect of laminar screw fixation is reliable.
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