1. Department of Orthopaedics and Traumatology, First Affiliated Hospital of The Guangxi University of Chinese Medicine, Nanning, Guangxi 530000, P.R. China
2. Teaching Department, First Affiliated Hospital of The Guangxi University of Chinese Medicine, Nanning, Guangxi 530000, P.R. China
3. Department of Orthopaedics and Traumatology, Yongjia County Traditional Chinese Medicine Hospital, Wenzhou, Zhejiang 325100, P.R. China