Department of Anatomy.
Faculty of Medicine, Gaziantep University, Gaziantep.
J Craniofac Surg. 2022 Sep 1;33(6):1924-1928. doi: 10.1097/SCS.0000000000008707. Epub 2022 Jul 29.
This study aimed to peruse the alteration of the position of the optic strut (OS) according to the anterior clinoid process (ACP) pneumatization.
This retrospective study conducted on cone-beam computed tomography images of 400 patients with a mean age of 36.49±15.91 years.
Anterior clinoid process length, width, and angle were measured as 10.56±2.42 mm, 5.46±1.31 mm, and 42.56±14.68 degrees, respectively. The tip of ACP was measured as 6.60±1.50 mm away from the posterior rim of OS. In the 631 sides (78.87%) did not have ACP pneumatization. In the cases with ACP pneumatization, three different configurations were identified as follows: Type 1 in 71 sides (8.87%), Type 2 in 56 sides (7%), and Type 3 in 42 sides (5.23%). Relative to ACP, the location of OS was determined as follows: Type A in 29 sides (3.64%), Type B in 105 sides (13.12%), Type C in 344 sides (43%), Type D in 289 sides (36.12%), and Type E in 33 sides (4.12%). The spread of data related to the attachment site of OS according to the presence or absence of ACP pneumatization showed that the location of OS was affected by ACP pneumatization ( P <0.001). In ACPs with pneumatization, the frequency of OS position relative to ACP was found as follows: Type A in none of sides (0%), Type B in 8 sides (7.6%), Type C in 53 sides (15.4%), Type D in 88 sides (30.4%), and Type E in 20 sides (60.6%).
The main finding of this study was that the location of OS relative to ACP was affected by ACP pneumatization. In ACPs with pneumatization, OS was located more posteriorly compared with ACPs without pneumatization.
本研究旨在探讨视神经管（OS）位置的改变与前床突气化的关系。
本回顾性研究分析了 400 名平均年龄为 36.49±15.91 岁的患者的锥形束 CT 图像。
前床突长度、宽度和角度分别为 10.56±2.42mm、5.46±1.31mm 和 42.56±14.68 度。前床突尖端距 OS 后缘 6.60±1.50mm。在 631 侧（78.87%）中未发生前床突气化。在前床突气化的病例中，发现了三种不同的类型：1 型 71 侧（8.87%），2 型 56 侧（7%），3 型 42 侧（5.23%）。与前床突相比，OS 的位置如下：A型 29 侧（3.64%），B 型 105 侧（13.12%），C 型 344 侧（43%），D 型 289 侧（36.12%），E 型 33 侧（4.12%）。根据前床突气化的有无，对 OS 附着部位相关数据的分布进行分析，结果表明 OS 的位置受前床突气化的影响（P<0.001）。在前床突气化的病例中，OS 相对于前床突的位置频率如下：A型无一例（0%），B 型 8 例（7.6%），C 型 53 例（15.4%），D 型 88 例（30.4%），E 型 20 例（60.6%）。
本研究的主要发现是 OS 相对于前床突的位置受前床突气化的影响。在前床突气化的病例中，OS 比前床突气化的病例更靠后。
