1. Department of Spine Surgery The First Affiliated Hospital Sun Yat‐sen University Guangzhou China
2. Guangdong Province Key Laboratory of Orthopaedics and Traumatology Guangzhou China
3. Department of Rheumatology and Immunology The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou China
4. Department of Rheumatology and Immunology The First Affiliated Hospital Sun Yat‐sen University Guangzhou China
5. Department of Spine Surgery The Fifth Affiliated Hospital Sun Yat‐sen University Guangzhou China