[Objective] To explore the surgical feasibility and clinical outcome of pedicle screw internal fixation for traumatic aflantoaxial instability. [Method] 9 cases with traumatic atlantoaxial instability were treated by C1,2 pedicle screw-rods internal fixation and bone graft fusion. The immediate outcome and complications were observed. [Results] There was no vascular or neural injury found. 9 cases were all followed up. The clinical symptoms were improved to some extend after operation. No looseness or breakage of the screws occurred. Bony fusion was achieved in all the cases. [Conclusion]Screw...
