1. Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
2. Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
3. Hunan Engineering Research Center of Osteoarthritis, Changsha, China
4. National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.