Affiliation: | 1. Department of Minimally Invasive Arthrology, The Third Affiliated Hospital of Beijing University of Chinese medicine, Beijing China ; 2. Department of Orthopedics, Dongfang Hospital Beijing University of Chinese Medicine, Beijing China ; 3. Department of Orthopedics, Fangshan Hospital Beijing University of Chinese Medicine, Beijing China ; 4. Third Department of Orthopedics, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing China |