1. Department of Orthopedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
2. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
3. Department of Orthopaedics, The Central Hospital of Yongzhou, Yongzhou, Hunan, China
4. Republican Scientific and Practical Center of Traumatology and Orthopedics, Minsk, Belarus