Fig. 2.
a Kaplan–Meier curve of 38 atlantoaxial metastases showed that the overall survival rates at 1, 2, and 3 years after surgery were 58.5, 40, and 28.3%, respectively. b Kaplan–Meier curves of different growth groups in atlantoaxial metastases showed that the median survival rates of slow, moderate, and rapid growth group were 60, 18, and 10 months, respectively