Abstract

Atlantoaxial screw and rod fixation is considered to be the “gold standard” for treating atlantoaxial instabilities. This challenging surgical procedure requires high skills and appropriate surgical armamentarium. The evolution of instrumentation methods for C1-C2 fusion from the use of posterior wiring methods to transarticular screws and C1 lateral mass with C2 pedicle screw construct have improved fusion rates to almost 100%. Methods: This is a prospective study of a series of 24 patients who were planned for C1-C2 fusion using C1 lateral mass and C2 pedicle screw technique between september 2017 and september 2019. Results: The union rate was 100% with an average union time of 5.3 months (range from 3 to 8 months). Postoperatively, the patients achieved an average of one Frankel grade neurological improvement and JOA SCALE improvement over a period of 6 months to 1 year. In conclusion, this technique provides an excellent union rate and good neurological recovery

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