Department of Spine and Orthopedics Southwest Hospital Affiliated to Youjiang Medical College for Nationalities Baise People’s Hospital Baise China;
Department of Laboratory Medicine Orthopedic Hospital of Integrated Traditional Chinese and Western Medicine in Guigang Guigang China;
Department of Spine and Orthopedics Southwest Hospital Affiliated to Youjiang Medical College for Nationalities Baise People’s Hospital Baise China;
Department of Spine and Orthopedics Southwest Hospital Affiliated to Youjiang Medical College for Nationalities Baise People’s Hospital Baise China;
School of Public Health and Management Guangxi Baiyoujiang Medical College for Nationalities Baise China;
Department of Laboratory Medicine Yunyang Hospital of Traditional Chinese Medicine Chongqing China;
New Coronavirus Pneumonia; Spinal Internal Fixation Surgery Autologous Blood Reinfusion; Controlled Hypotension; Curative Effect;