1Bottom line in the treatment of bone tumorsWEI Xing487-4892Clinical features and surgical management of metastatic skeletal diseases distal to the elbow and kneeHUANG Lin, GUO Wei, YANG Rong-li, TANG Xiao-dong, YAN Tai-qiang490-4963Simple resection of the ilium for primary malignant iliac bone tumorsJIN Tao, LIU Wei-feng, LI Yuan, DENG Zhi-ping, NIU Xiao-hui497-5004Surgical treatment and prognostic analysis for multiple myelomaZHANG Xue-wei, DU Xin-ru, CHEN Wen-ming501-5065Expressions and clinical signiifcance of fascin-1 in giant cell tumors of boneLU Qiang, WU Chun-yun, WANG Bao-cang, LIU Lan-ze, LI Yong, WANG Hui, YAN Ming507-5106Tumor prosthesis replacement in proximal humeral application in the treatment of malignant bone tumorWANG Yong-gui, LIU Jiang-tao511-5157Expressions of cellular prion protein and the correlation analysis of prognosis in osteosarcoma of Enneking IIIBAI Yun-peng, DONG Yang, ZHANG Zhi-chang, YANG Qing-cheng, XU Ze-quan, YAN Hong-liang516-5208Signal changes of MRI T1-weighted images of the medullary cavity before and after the neoadjuvant chemotherapy for extremity osteosarcomaDENG Zhi-ping, DING Yi, SU Yong-bin, NIU Xiao-hui521-5249Application of three-dimensional lfuoroscopic navigation in percutaneous iliosacral screw ifxation for posterior pelvic ring injuriesJIA Shuai-jun, CAO Zheng, Lü Shang-jun, HE Li-jun, LIU Jian525-53010Incomplete supracondylar femoral osteotomy and locking compression plate ifxation for genu valgumHUANG Ye, JI Song-jie, DU Hui, SHAO Hong-yi531-53511Treatment of serious brachymetatarsia by gradual metatarsal elongation combined with bone graftCHEN Hui-hao, ZHAO Liang-yu, GUO Xing-feng, YIN Gang, LEI De-qiao, HOU Chun-lin536-53912Current status of the treatment of aseptic loosening in tumor prosthesesGAO Ming, ZHANG Qing, NIU Xiao-hui540-54313Research progress of chemokines and chemokine receptors in osteosarcomaCHEN Quan-chi, HUA Ying-qi, ZUO Dong-qing, ZENG Hui, CAI Zheng-dong544-54714Targeted therapies for osteosarcomaTIAN Da-wei, CAI Lin548-55015Application of arthroscopy in the diagnosis and treatment of tibial plateau fracturesZHAO Sen, YANG Zi-quan, WEI Xiao-chun551-55516Reconstruction of defects following osteosarcoma resection by distraction osteogenesis：1 case reportSUN Yang, NIU Xiao-hui, WANG Tao, ZHANG Qing, DING Yi, HAO Lin556-559 