Accuracy of Le Fort I osteotomy with combined computer-aided design/computer-aided manufacturing technology and mixed reality
Accuracy of Le Fort I osteotomy with combined computer-aided design/computer-aided manufacturing technology and mixed reality
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DOI：
10.1016/j.ijom.2020.09.026
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发表时间：
2021-06-01
影响因子：
2.4
通讯作者：
Katakura, A.
中科院分区：
文献类型：
--
作者：
Koyachi, M.;Sugahara, K.;Katakura, A.
本研究的目的是验证使用计算机辅助设计/制造技术和混合现实手术导航，使用新的配准标记和HoloLens耳机进行上颌骨重新定位手术的术前计划的可重复性和准确性。纳入了18例患者，平均年龄为26.0岁。通过比较术前虚拟手术三维图像（Tv）与术后1个月计算机断层扫描图像（T-1）进行术后评价。三维表面分析误差范围为79.9%~ 97.1%，平均误差为90.3%。在基于点的分析中，计算所有情况下Tv和T-1在XYZ轴上每个点的误差。XYZ轴上所有计算点的中位符号值偏差为-0.03 mm（范围-2.93 mm至3.93 mm）。XYZ轴上所有计算点的中位绝对值偏差为0.38 mm（范围为0 mm至3.93 mm）。任何轴上的任何点之间均无统计学显著差异。这些值表明所使用的方法能够以高精度再现上颌骨位置。
The aim of this study was to verify the reproducibility and accuracy of preoperative planning in maxilla repositioning surgery performed with the use of computer-aided design/manufacturing technologies and mixed reality surgical navigation, using new registration markers and the HoloLens headset. Eighteen patients with a mean age of 26.0 years were included. Postoperative evaluations were conducted by comparing the preoperative virtual operation three-dimensional image (Tv) with the 1-month postoperative computed tomography image (T-1). The three-dimensional surface analysis errors ranged from 79.9% to 97.1%, with an average error of 90.3%. In the point-based analysis, the errors at each point on the XYZ axes were calculated for Tv and T-1 in all cases. The median signed value deviation of all calculated points on the XYZ axes was -0.03 mm (range -2.93 mm to 3.93 mm). The median absolute value deviation of all calculated points on the XYZ axes was 0.38 mm (range 0 mm to 3.93 mm). There were no statistically significant differences between any of the points on any of the axes. These values indicate that the method used was able to reproduce the maxilla position with high accuracy.