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Assessment of Spinal Tumor Treatment Using Implanted 3D-Printed vertebral Bodies with Robotic Stereotactic Radiotherapy

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The Innovation 2020年第2期1卷 8-12,7页

作者： Hongqing Zhuang Feng Wei Liang Jiang Yuxia Wang Zhongjun Liu Department of Radiation Oncology Peking University Third Hospital49 North Garden RoadHaidian DistrictBeijing 100191P.R.China Orthopedic Department Peking University Third Hospital49 North Garden RoadHaidian DistrictBeijing 100191P.R.China These authors contributed equally

To investigate the feasibility and early efficacy of 3D-printed vertebral body implantation combined with robotic radiosurgery in the treatment of spinal tumors.This study included 14 patients with spinal tumors from December 2017 to June 2018.Before surgery,all patients were subjected to CT scan and 3D data of the corresponding vertebral segments were collected.Titanium alloy formed 3D-printed vertebral body implantation and robotic stereotactic radiotherapy were performed because of the risk of postoperative residual,high risk of recovery,or recurrence after surgery.The main outcomes included the remission of symptoms,vertebral body stability,robotic stereotactic surgical precision,and local tumor control.All patients received complete and successful combination therapy,and all healed primarily without complications.The error of the coverage accuracy for robotic radiosurgery was less than 0.5 mm,and the error of the rotation angle was less than 0.5.The therapeutic toxicity was limited(mainly in grades 1–2),and adverse events were uncommon.The evaluation of vertebral body stability and histocompatibility for all patients met the postoperative clinical requirements.For patients with post spinal injury,the pain symptoms were reduced or disappeared(93%),and nerve function was improved or even recovered after treatment(100%).During our follow-up period,most tumors were locally well controlled(93%).3D-printed vertebral body implantation combined with robotic radiosurgery may offer a new treatment of spinal tumors.Chinese clinical trial registry:ChiCTR-ONN-17013946.

关键词： 3D-PRINTED TECHNOLOGY SPINAL TUMOR vertebral body implantation ROBOTIC STEREOTACTIC RADIOTHERAPY

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