dependent radiological predictor of postoperative neurological out⁃Р[2] GOEL A. Treatment of basilar invagination by atlantoaxial jointР come in type A basilar invagination[J]. Sci Rep,2019,9(1):Р distraction and direct lateral mass fixation[J]. J Neurosurg Spine,Р 19364.Р 2004,1:281⁃286.Р[3] SHANG G,FAN T,HOU Z,et al. A modified microsurgical in⁃ (编辑 国 荣)Р terfacet release and direct distraction technique for management ofРРР 本刊网址:http://yxxb. xjtu. edu. cn 微信公众号:西安交通大学学报医学版