1. Department of Orthopaedics, Second Military Medical University’s Jinan Clinical Medicine College, Jinan, China;
2. Department of Orthaopedics, General Hospital of Jinan Military Command, Jinan, China;
3. Department of Orthopaedics, Kuishan Section of Rizhao People’s Hospital, Rizhao, China;
4. Guangxi International Zhuang Medicine hospital, Guangxi, China