3D打印导航模板辅助寰枢椎椎弓根螺钉置钉准确性的实验研究  

Experimental study of 3D printed navigation template in assisting accuracy of atlantoaxial pedicle screw placement

作　　者：吴炳华[1] 徐聪[1] 邓高荣[1] 高翔[1] 缪锌[1] 凌强[1] 懂财荣 张魁忠[1] WU Bing-hua;XU Cong;DENG Gao-rong;GAO Xiang;MIAO Xin;LING Qiang;DONG Cai-rong;ZHANG Kui-zhong(Department of Orthopaedics,the Fourth Affiliated Hospital of Nanchang University,Jiangxi Province,Nanchang 330003,China)

机构地区：[1]南昌大学第四附属医院骨科

出　　处：《中国当代医药》2020年第1期102-104,F0004,共4页China Modern Medicine

基　　金：江西省卫生和计划生育委员会重点研发计划项目(2016IBBG70191)

摘　　要：目的探讨3D打印导航模板辅助寰枢椎椎弓根螺钉置钉的准确性。方法选取2017年9月~2018年6月南昌大学医学院解剖教研室提供的10例成人颈椎标本作为研究对象,CT扫描后利用Mimics重建颈椎的三维数字化模型,利用3-matic设计寰枢椎椎弓根特异性反向模板,3D打印寰枢椎的导航模板。利用导航模板共置入40枚椎弓根螺钉,置钉后,再次对标本进行CT扫描、Mimics重建以及解剖,评价椎弓根螺钉置入的准确性。结果采用此导板置入的40枚螺钉经CT扫描、Mimics重建以及对标本进行解剖证实,1枚穿破椎弓根骨皮质。椎弓根置入的正确率为97.5%。结论3D打印导航模板辅助寰枢椎椎弓根置钉的正确率高,值得临床深入研究并应用。Objective To explore the accuracy of 3D printing navigation template in assisting atlantoaxial pedicle screw placement.Methods From September 2017 to June 2018,10 adult cervical spine specimens were provided by the department of anatomy in Medical College of Nanchang University were selected as subjects.The three dimension digital model of cervical vertebrae was reconstructed by Mimics after CT scanning in 10 cases of adult cervical vertebrae without lesion.The specific reverse template of atlantoaxial vertebrae was designed by 3-matic and the navigation module of atlantoaxial was printed out in 3D.A total of 40 pedicle screws were placed with navigation template,and then the specimens were scanned by CT,reconstructed by Mimics,and dissected to evaluate the accuracy of pedicle screw placement.Results A total of 40 screws inserted with this guide plate were reconstructed by CT scan,Mimics reconstruction and anatomical confirmation of the specimen.One of the screws pierced the pedicle bone cortex.The correct rate of pedicle placement was 97.5%.Conclusion The accuracy of atlantoaxial pedicle screw placement assisted by 3D printing navigation template is high,which is worthy of further clinical study and application.

关 键 词：寰枢椎 计算机 导航模板 椎弓根 

分 类 号：R682[医药卫生—骨科学]