1Study on the Relationship Between Lumbar Disc Herniation and Multiple Joint Laxity in Young PeopleLiao Shichuan, Wang Yi, Wei Hao673-6772Clinical Effect of Volar Locking Plate in the Treatment of Distal Radius Fractures with Dorsal FragmentJi Jiaqing, Fan Jian, Wang Jian678-6833Clinical study of Combined Guide Plate and Navigation Technique for Acetabular Reconstruction After Resection of Pelvic TumorCai Qing, Dang Jingyi, Fu Jun684-688,7354Reliability and Repeatability of the Improved Classification of Acetabular Fractures Based on the Con-cept of Three-column StructureZhao Jun, Chen Yixin, Chen Changsheng689-6935Observation of the Curative Effect of Unicondyle Replacement Under the Application of Accelerated Rehabilitation Surgery(ERAS)in the Treatment of Anteromedial Knee OsteoarthritisZhang Hui, Pei Zheng, Xue Zhe694-6986Curative Effect of Allogeneic Tendon in the Treatment of Kuwade Type Ⅲ,Ⅳ Chronic Achilles Tendon RuptureXiang Chenghao, Huang Tao, Tan Xiaorong699-7037Three-Dimensional Position of Infra-acetabular Screwin ChineseZhu Qi, Lou Nan, Yu Zhicai704-707,7318Study on the Relationship Between Selenium and Osteoporosis and OsteoarthritisLi Lei, Wu Hao, Wu Liangshao708-7129Effect of Paracrine of Bone Mesenchymal Stem Cells on Biological Activity of OsteoblastsWang Guangkuo, Zhang Xiuzhi, Wang Weidan713-71810Study on the Mechanism of Continuous Stretch Stress Inducing The Differentiation of Tendon Stem Cells Into OsteoblastsShen Jialiang, Wang Lin, Shang Wenqiang719-723,727