Jianhua Wang, Haozhi Yang, Yuyue Chen, Guoqiang Liu, Ningling Xie, Shuang Zhang, Guoqing Qiao
BACKGROUND: To evaluate the difficulty of reduction of congenital atlantoaxial dislocation (AAD) with/without os odontoideum or basilar invagination (BI) based on CT quantitative analysis. METHODS: From March 2018 to December 2022,the CT features of 108 patients with AAD with/without os odontoideum or BI were analyzed. Quantitative scores were defined according to imaging features, including: sloping of the lateral mass, osteophyte between the lateral mass joint, ball-and-socket deformity of the lateral mass joint, vertical interlocking of the lateral mass joint, callus between the lateral mass joint, atlanto-odontoid joint hyperplasia, blocking or fusion...
September 6, 2023: World Neurosurgery