Accuracy of screw placement in the apical region of Lenke 1 adolescent idiopathic scoliosis surgery using a calibration technique for the intraoperative navigation error  

作　　者：CHEN Huan-xiong HE Xian-bo LI Guo-jun TANG Song-jie ZHONG Zhen-hao HUANG Tao LIN You-cai LIN Su-yu MENG Zhi-bin 

机构地区：[1]Department of Spine Surgery,The First Affiliated Hospital of Hainan Medical University,Haikou 570102,China [2]Department of Anesthesiology,The First Affiliated Hospital of Hainan Medical University,Haikou 570102,China

出　　处：《Journal of Hainan Medical University》2023年第6期43-50,共8页海南医学院学报（英文版）

基　　金：National Natural Science Foundation of China(81902270);Young Talents’Science and Technology Innovation Project of Hainan Association for Science and Technology(QCXM202014)。

摘　　要：Objective:To study the position and the grade of screw perforation in the apical region of adolescent idiopathic scoliosis(AIS)surgery using a calibration technique for the intraoperative navigation error,and to analyze the related factors of navigation deviation and the clinical significance of the calibration technique.Methods:From 2017 to 2020,a total of 60 Lenke 1 AIS surgical cases were enrolled in this research.The 30 cases received surgery using the intraoperative navigation system(Navigation group)and another 30 cases were assisted with intraoperative navigation system with calibration technique(Calibration group)for the intraoperative navigation error.The basic information and radiological data of the both groups were all recorded.According to the Fu Chang-feng’s pedicle channel classification system,the pedicle on the apical region of the two groups was classified.And then the accuracy of screw placement of the two groups was evaluated according to the Rao’s classification.Results:A total of 600 screws were placed in the two groups.The 297 and 303 pedicle screws were implanted in the navigation group and the calibration group,respectively.In the apical region of the calibration group,the rates of the grade 0 screw placement in type A,B and C pedicle were 95.7%,86.7%and 68.9%respectively.It was a statistically significant difference from the 73.9%,66.9%and 30.0%in the navigation group respectively(P<0.05).In the calibration group,the rates of the medial cortical perforation in the type A,B,C and D pedicle were 0%,1.6%,1.6%and 0%,respectively.The corresponding rates were 16.3%,16.9%,30.0%and 47.6%in the navigation group,respectively.Moreover,in the concave side of the apical region of the calibration group,the rates of the medial cortical perforation in the type A,B,C and D pedicle were 0%,3.6%,2.6%and 0%,respectively.Compared with the calibration group,the corresponding rates were higher in the navigation group(34.4%,25.9%,37.2%and 60.0%,respectively).No serious complications such as spinal cord or n

关 键 词：Adolescent idiopathic scoliosis Apical region Pedicle channel classification Pedicle screw Navigation error 

分 类 号：R687.3[医药卫生—骨科学]