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在Le Fort I骨折术中CAD/CAM支柱的指示和限制

S Yamamoto¹, R Iwadate², K Maeda¹

¹Department of Oral and Maxillofacial Surgery, Kobe City Medical Center General Hospital, Kobe, Hyogo, Japan.

International journal of oral and maxillofacial surgery

|April 23, 2025

概括

这项研究使用CAD/CAM片评估了Le Fort I骨切除术 (LFI) 的准确性. 结果显示,III类错位的准确性很高,但在II类和面部不对称的病例中有显著的偏差.

科学领域:

口腔和牙面部外科手术
整形手术整形手术整形手术
生物医学工程生物医学工程

背景情况:

勒福特I骨切除术 (LFI) 对整形手术的结果至关重要.
准确的LFI规划和执行对于可预测的结果至关重要.
计算机辅助设计/计算机辅助制造 (CAD/CAM) 具提供了提高外科精度的潜力.

研究的目的:

为了评估Le Fort I骨切除术 (LFI) 的准确性,使用CAD/CAM中间.
为了比较计划与术后的3D大部位置.
为了评估不同类型的缺陷的准确性:III类,II类和面部不对称.

主要方法:

追溯研究31名患者接受LFI与CAD/CAM支柱.
使用计算机断层扫描 (CT) 扫描进行三维 (3D) 分析. 手术前后扫描.
虚拟骨切割片段的表面叠加,以分析计划运动与实际偏差.

主要成果:

在CAD/CAM片中,对于III类位错位的检测显示出高准确度.
在II类缺陷中观察到显著的前后背偏差 (例如,U1处的3.24±1.09毫米).
在II类和面部不对称病例中,观察到精度低,临床上不可接受的偏差.

结论:

在III类恶性闭塞中,CAD/CAM中间对于Le Fort I骨切术具有高度准确性.
使用CAD/CAM片的LFI的准确性在II类缺陷和面部不对称性方面是有限的.
对于复杂的骨差异,可能需要进一步改进CAD/CAM技术.

关键词:

计算机辅助设计是指计算机辅助设计.维度测量准确度维度测量准确度维度测量准确度勒福特骨干切除术 (英语:Le Fort osteotomy) 是一种骨干切除术.封闭式片是指一个封闭式片.整形手术整形手术整形手术

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