1Combined use of intraarticular and intravenous tranexamic acid in total hip arthroplastySun Shi-wei, Yang Long, Xie Shui-an, Wang Jian, Xu Ru-bin7149-71552Cocktail therapy reduces hidden blood loss after total hip arthroplastyShi Li-jun, Bai Yu, Gao Fu-qiang, Sun Wei, Wang Wei-guo, Cheng Li-ming, Guo Wan-shou7156-71623Protection of quadratus femoris and posterior soft tissue repair for the prevention of early dislocation in total hip arthroplasty through posterolateral approachShi Si-feng, Lu Wen-hai, Zhou Bing, Chen Xiang-yang, Zhao Feng-chao, Guo Kai-jin7163-71684Optimization design and simulation analysis of artificial atlanto-odontoid joint structureXiong Sheng, Chen Xi-liang, Wang Yun-feng, Hu Yong7169-71845Biocompatibility of anatomic porous titanium fusion cageA Jian-cuo, Wang Xi-min, Li Zhan-yin, Xu Zhi-hua7185-71916Special formed titanium mesh cages for treating spinal tuberculosis via one-stage posterior approachAbudunaibiAili, Zhang Hong-qi, Huang Wei-min, Li Lei, Tian Hui-zhong7192-71997Feasibility of acetabular posterior column lag screw guide based on digital model designHu Shou-li, Mei Ji-wen, Mu Shang-qiang, Li Kun, Sun Hai-guang7200-72058Creep characteristics of tibial fractures with three internal and external fixation devicesWang Gang, Li Xin-ying, Zhang Shu-quan, Li Ya-jun7206-72119Biomechanical characteristics of distal tibial articular surface defect of the ankle joint:three-dimensional finite element analysisSong Zuo-cheng, Yan Xiao-long7212-721810Finite element analysis of unstable intertrochanteric fracture fixed with triangle proximal femoral nailHu Qun-sheng, Jiang Zi-wei, Huang Feng7219-722411Three-dimensional printing-assisted selective segmental pedjcle screws for adolescent idiopathic scoliosisZhang Shu-fang, Chen Rong-chun, Guo Chao-yang, Ye Shu-xi, Zhong Hong-fa, You Hui7225-723112Feasibility of three-dimensional printing composite template for lumbar posterior cortical bone screwLi Zhi-duo, Yuan Feng, Sheng Xiao-lei, Lu Hai-tao, Jiang Wei, Li Wei7232-723813Multislice spiral CT navigation of screw placement after complex tibial plateau fractureXu Hong-wei, Wu Wei-guo7239-724414Lumbosacral sagittal parameters measured by magnetic resonance in association to L5/S1 intervertebral disc degenerationDing Mu-chen, Shi Zhi-cai, Lu Chun-wen, Wu Jin-hui, Wang Chao, Yuan Jia-bin, Zhou Zhen7245-725015Correlation of nicotine dose and lumbar posterolateral fusion rate:imaging and biomechanical testingYang Bao-jia, Yang Kai-shun, Yao Ru-bin7251-726016Feasibility of implantation of a cemented femoral stem in the treatment of osteoporotic femoral neck fracture in elderly patients:study protocol of a randomized controlled trialRen Rong, Li Ling-wei, Guo Qi-fa7261-726617Posterior percutaneous pedicle screw fixation for acute thoracolumbar vertebral fractures with simple anterior spinal column injury:study protocol for a retrospective, self-controlled trialLiang Lei, Liu Wen-de, Wu Yi-fan, Sun Xiao-hang, Ding Jun-jie7267-727218Research method and progresses of biomechanical properties of human spineZhang En-ze, Liao Zhen-hua, Liu Wei-qiang7273-727919Molecular mechanism of magnesium ions in bone metabolism:research and progressShang Xiao-pan, Li Tao, Lu Yu-tong, Deng Wei, Wang Wen-ju, Yang Yong-jin7280-728720Meta-analysis of anterior screw fixation versus posterior cervical fusion in treatment of odontoid fracturesZha Yuan-yu, Yang Yang, Zhou Yi-chi, Wei Ren-xiong, Zhang Shu-wei, Jin Wei7288-7296 