Jaworek-Troć J, Ochwat K, Walocha J A, Zamojska I, Lipski M, Żytkowski A, Chrzan R, Zawiliński J, Ghosh S K, Zarzecki M P
Department of Anatomy, Jagiellonian University Medical College, Krakow, Poland.
Faculty of Philology, Department of Polish Dialectology and Logopaedics, University of Lodz, Poland.
Folia Morphol (Warsz). 2023;82(4):885-891. doi: 10.5603/FM.a2023.0001. Epub 2023 Jan 23.
Onodi cell is a posterior ethmoid air cell with the optic canal bulging into it; the common position of the bulge is into the sphenoid sinus, usually immediately posterior to the posterior ethmoid air cells. Variable pneumatisation patterns lead to various structures of lamellae and sinuses occasionally exposing important nerves and vessels, such as the optic and vidian nerves, internal carotid artery and cavernous sinus. In clinical practice, special imaging techniques are used to navigate through the paranasal sinuses and hence avoid injury to these structures. This study is aimed to determine the prevalence of the Onodi cell in the Polish population and compare it with other reported occurrences.
A retrospective analysis of 296 computed tomography (CT) scans of patients treated in Krakow, Poland, using a Siemens Somatom Sensation 16 spiral CT scanner. No contrast medium was administered.
The Onodi cell was found in 31 out of the 296 patients, or approximately 10.5%, consistent with the majority of research reporting on Onodi variants. Additionally, there was one presentation of a bilateral Onodi cell in a male patient. No statistically significant difference was found between the male and female populations with a positive identification of the variant (p = 0.095, Chi2 test).
This study helped approximate the Onodi variant prevalence of 10.47%, falling within a commonly reported range 8-14%. This gives clinicians and surgeons a better understanding of this variant's structure and significance, and therefore an opportunity to improve treatment outcomes and research.
Onodi气房是一种后筛窦气房，视神经管向其内膨隆；膨隆的常见位置是进入蝶窦，通常紧邻后筛窦气房后方。不同的气化模式导致板层和窦的各种结构，偶尔会暴露重要的神经和血管，如视神经、翼管神经、颈内动脉和海绵窦。在临床实践中，使用特殊的成像技术来引导通过鼻窦，从而避免损伤这些结构。本研究旨在确定波兰人群中Onodi气房的患病率，并将其与其他报道的发生率进行比较。
对在波兰克拉科夫接受治疗的患者的296份计算机断层扫描（CT）进行回顾性分析，使用西门子Somatom Sensation 16螺旋CT扫描仪。未使用造影剂。
在296例患者中，有31例发现了Onodi气房，约占10.5%，与大多数关于Onodi变异的研究报道一致。此外，一名男性患者出现双侧Onodi气房。在阳性识别该变异的男性和女性人群之间未发现统计学显著差异（p = 0.095，卡方检验）。
本研究有助于估算Onodi变异的患病率为10.47%，落在通常报道的8%-14%范围内。这使临床医生和外科医生能更好地了解该变异的结构和意义，从而有机会改善治疗效果和研究。
