1. Department of Orthopaedics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
2. Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University; Institute of Neuroscience, Nanchang University, Nanchang, Jiangxi, China
3. Department of Orthopedics, Zhabei Central Hospital, Shanghai, China
4. Department of Spine Surgery, Beijing Jishuitan Hospital, Peking University, Beijing, China
5. Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
6. Department of Imaging, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China