Department of Orthopaedics;
The First Affiliated Hospital of Hebei North University;
Zhanjiakou;
China;
Department of Orthopaedics;
The First Hospital of Qinhuangdao;
Qinhuangdao;
China;
School of Graduate;
Hebei North University;
Zhangjiakou;
China;
Brucellar Spondylitis; Minimally Invasive Surgery; Unilateral Biportal Endoscopy; Clinical Efficacy;