1Design and preliminary clinical application of specified posterior atlantoaxial screw rod fixation instrumentsMA Xiangyang, YANG Jincheng, ZOU Xiaobao, CHEN Shujin, YANG Min, WANG Binbin, QIU Feng, XIA Hong, YIN Qingshui261-2682Treatment of PIPKIN type II fracture of femoral head by direct anterior approachLI Hao, WU Zhenyu, WANG Dalin269-2753Application of anterior auxiliary plate fixation in the treatment of unstable femoral intertrochanteric fracturesCHEN Wei, DING Zhenqi, KANG Liangqi, CHEN Zhida276-2804One-stage posterior debridement, interbody grafting and internal fixation in the treatment of thoracolumbar tuberculosisPU Xiaobing, KANG Jie, ZHOU Qiang, XIA Hong281-2865The application of whole-course bleeding management during the perioperative period for degenerative lumbar spinal stenosisMA Hangzhan, LI Weikuan, HE Deli287-2926Investigation of the influence factors of postoperative rehabilitation in 248 patients with acute hand injuriesZHOU Wei, SONG Zhaohui, YANG Chunlai, SUN Ying, LIANG Min293-2977Comparison of therapeutic effects between PFNA and PFN internal fixation for femoral intertrochanteric fractures in elderlyLIAN Junfeng, DENG Zhirong, YANG Le298-3038Treatment of minimally invasive posterior lumbar interbody fusion via Quadrant channel for single-segment degenerative lumbar spine diseasesWANG Yefeng, ZOU Tianming304-3089Analysis of gene expression profiles in mice with osteoporosis under the conditions of different bone mineral densityCHEN Bailing, CUI Haowen, LIN Tao, Rouzikare·Yimiti, LV Zhong309-314