1IOF conference highlight fracture , prevention and treatmentEgo Seeman, ZHAO Yanlin261-2662Current therapies to prevent and treat osteoporosis (Review)267-2743The efficacy of radiotherapy for recurrent vertebral hemangiomas after surgery (6 cases report)QIAN Liting, YU Zihao275-2774Clinical analysis of 38 retroperitoneal liposarcomaWANG Shulian, LIU Xinfan, LI Yexiong, YU Zihao, GU Dazhong, QIAN Tunan, HAN Jiazhu278-2815One stage reconstruction of bone following segmental resection in the treatment of fibrous dysplasia of long bones282-285,3006Chronic osteomyelitis treated by operationXU Shaoting, LI Zhaorong286-2897Spinal malignant lymphoma :Report of 18 cases290-2938Internal vertebral lamina depression preserving posterior lumbar complex to treatment the Lumbar vertebral canal stenosis294-2979Clinical observation on the use of "Gu Shu Kang" in treatment of osteoporotic compression fracture of the spineBO Liya, WU Chunsheng, WANG Xiuxia298-30010Noninvasive treatment in malignant bone tumors with high - intensity focused ultrasound301-304,31711Experimental studies on paclitaxel - induced apoptosis and growth inhibitory effects in Ewing sarcoma cell line of RD-ES in VitroKNAG Lixin, GUO Wei, GUO Yi305-30812Expression and clinical significane of DNA Topoisomerase I in osteosarcomaZHOU Shiguo, SHI Nengmu, SHI Zuolin309-312,31513Clinical study of the salmon calcitonin (S - CT) for the treatment of Lumbar Spinal stenosisZHAO Sheng, WANG Youcheng, YE Qibin316-317