Fig. 3.
Evaluations of preoperative and postoperative radiographs. At the final follow-up, atlantoaxial subluxation was corrected and all the average atlanto-dens interval (ADI), space available for the cord (SAC), and Ranawat values had improved. ADI showed significant improvement immediately after surgery (p = 0.0009) and at final follow-up (p = 0.0002). SAC showed significant improvement immediately after surgery (p = 0.0005) and at final follow-up (p = 0.001).
