1. Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
2. Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou 310016, China
3. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
4. Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
5. Department of Spinal Surgery, The Affiliated Hospital of Medical School of Ningbo University, Ningbo 315020, China