Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University.
University of Shanghai for Science and Technology, Yang Pu.
J Craniofac Surg. 2023;34(2):830-833. doi: 10.1097/SCS.0000000000009168. Epub 2023 Feb 6.
In contrast to the most commonly used optical navigation system, electromagnetic navigation has huge potential in operations with a narrow field. The purpose of this experiment was to test and confirm whether the electromagnetic navigation method the authors developed for mandibular angle osteotomy (MAO) met clinical requirements.
Using a dental splint that could be repeatedly mounted on teeth, registration between surgical plan and actual field was performed automatically.
Navigation of MAO was first performed on 10 mandibular models. The position precision measured using a coordinate measuring machine was 1.30±0.61 mm. Then, a navigation experiment was performed on 4 patients. Accuracy in actual operation measured by the NDI pointing sensor was 1.89±0.76 mm. Our noninvasive automatic registration process reduced the surgical exposure time and eliminated the bias of the manual selection of registration points.
This preliminary study confirmed the feasibility of the electromagnetic navigation technique in terms of both applicability and accuracy in MAO surgery.
与最常用的光学导航系统相比，电磁导航在视场较窄的手术中具有巨大的潜力。本实验旨在测试并证实作者为下颌角截骨术（MAO）开发的电磁导航方法是否符合临床要求。
使用可重复安装在牙齿上的牙科夹板，自动进行手术计划与实际场之间的配准。
首先在 10 个下颌模型上进行 MAO 的导航。使用坐标测量机测量的位置精度为 1.30±0.61mm。然后，对 4 名患者进行了导航实验。NDI 指向传感器测量的实际操作精度为 1.89±0.76mm。我们的非侵入式自动注册过程减少了手术暴露时间，并消除了手动选择注册点的偏差。
这项初步研究证实了电磁导航技术在 MAO 手术中的适用性和准确性。
