1Digital analysis and application of screw insertion pathway for S1 transverse sacroiliac screw fixationZHANG Yuanzhi, WANG Junqiang, ZHAO Jianmin, LU Quanli, LI Yaguang, JIA Yanfei69-742Comparison of ultrasonic bone curette and high-speed drill in posterior cervical single open-door laminoplastyXUE Xukai, LI Gaofei, JIANG Jianming75-803Application of CT guided PVP combined with 3D reconstruction for treatment of thoracolumbar fracturesZHANG Aiming, LI Qing, HUANG Hui, LIANG Daochen, ZHAO Chengyi, MEI Zhi, YAO Haiyan, FAN Zhidan, ZHANG Fei81-864Comparison of clinical effects between direct lateral and posterolateral approach for primary total hip arthroplastyWANG Yefeng, ZOU Tianming, CHEN Guangxiang87-925Effect of perioperative psychological intervention for patients with lumbar disc herniationYANG Cuixia, FENG Canlin, LI Hanwen93-976The influence of magnesium alloy with calcium phosphate coating (CaP-AZ31B) on the biological properties of mouse osteoblastsZHANG Tao, XIA Hong, YIN Qingshui, LI Mei, ZHANG Yu, YANG Xiaoming, LAN Guobo98-1037Current researches for giant cell tumor of bone and its adjuvant therapyLIN Yulin, ZHANG Yu112-119