先前对眶下孔(IOF)变异的研究表明,在发生特定变异的侧面和性别方面,结果相互矛盾。发现性别之间在某些测量点上存在显着差异,然而,其他研究没有报告这种差异.附件IOF(AIOF)的存在可导致不完全麻醉或治疗失败。先前的研究表明,AIOF的患病率在16.9%至47.6%之间存在差异。
这项研究的目的是基于3维(3D)面部骨骼计算机断层扫描(CT)扫描的图像对IOF和AIOF进行形态学和形态学研究。
回顾性研究。
使用临床数据仓库v2.5(CDW,PlanitHealthcare,首尔,韩国)。我们与CDW一起用于分析的搜索词是“面部骨骼3DCT”。\"首先,检查了眶下边缘以下区域,以确定是否存在IOF和AIOF.第二,确定IOF的形状并将其分类为圆形或椭圆形。第三,测定IOF的垂直(VD)和水平(HD)直径。最后,测量了重要的解剖标志和IOF之间的距离。
具有圆形形状的单个IOF是最常见的。男性IOF的HD和VD明显大于女性。男性和女性之间的IOF和眶下边缘之间的距离相似。从侧向鼻孔(LNA)到IOF和前鼻棘(ANS)到IOF的距离,在两边,女性明显短于男性。左右两侧AIOF的患病率分别为7.3%和8.9%,分别。AIOF最常见的位置是在IOF的下内侧。
这项研究的男性和女性患者数量不平衡。
男性的IOF大小大于女性。男性和女性的IOF与眶下边缘的距离相似,然而,女性IOF和ANS以及IOF和LNA之间的距离比男性短。
Previous studies of variations of the infraorbital foramen (IOF) demonstrated conflicting results regarding to the side and gender in which specific variations occur. Significant differences in some measurement points between genders have been found, whereas, other studies did not report such differences. The presence of an accessory IOF (AIOF) can result in incomplete anesthesia or treatment failure. Previous studies have demonstrated variable results regarding the prevalence of an AIOF ranging from 16.9% to 47.6%.
The purpose of this study was to perform a morphological and morphometric study of the IOF and AIOF based on images of 3-dimensional (3D) facial bone computed tomography (CT) scans.
Retrospective study.
Identification and analysis of patients who have undergone facial bone 3D CT were performed using Clinical Data Warehouse v 2.5 (CDW, Planit Healthcare, Seoul, Korea). The search term that we used with the CDW for analysis was \"facial bone 3D CT.\"First, the region below the infraorbital rim was examined to determine the presence of the IOF and AIOF. Second, the shape of the IOF was determined and categorized as circular or oval. Third, the vertical (VD) and horizontal (HD) diameters of the IOF were determined. Lastly, the distances between important anatomic landmarks and the IOF were measured.
A single IOF with a circular shape was most common. The HD and VD of the IOF were significantly larger in men than in women. The distance between the IOF and the infraorbital margin was similar between men and women. The distances measured from the lateral nasal aperture (LNA) to the IOF and the anterior nasal spine (ANS) to the IOF, at both sides, were significantly shorter in women than in men. The prevalence of the AIOF on the right and left side was 7.3% and 8.9%, respectively. The most commonly observed position of the AIOF was on the inferior medial side of the IOF.
This study had an imbalance in the number of male and female patients.
The size of the IOF was larger in men than in women. The distance of the IOF from the infraorbital margin was similar for men and women, whereas, the distances between the IOF and the ANS and the IOF and LNA were shorter in women than in men.