Conclusions. Navigation does indeed provide a higher accuracy in the placement of pedicle screws for most of the subgroups presented.
结论：在以上提到的大部分组群中，导航对于椎弓根螺钉置钉确实能提供一个较高的准确性。
The method has low requirements for the placement attitude and assembling accuracy of binocular sensor, thus the calculation error of coordinates produced by medium refraction can be removed.
该方法对摄象机的摆放姿态与双目传感的装配精度要求较低，可去除介质折射产生的坐标计算误差。
Summary of Background Data. Safety concerns have driven specific interests in the accuracy and precision of pedicle screw placement.
背景资料概述：由于安全性的关系，使得人们对椎弓根螺钉置钉的准确性和精确度有着特殊的兴趣。
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