Microsurgical anatomy of the olfactory filaments in the nasal mucosa

医学 尸体痉挛 嗅粘膜 解剖 鼻粘膜 鼻中隔 尸体 嗅觉系统 鼻子 精神科
作者
Hasan Barış Ilgaz,Kamran Urgun,Ulaş Yener,Melike Mut,James K. Liu,Kaan Yağmurlu
出处
期刊:Journal of Neurosurgery [American Association of Neurological Surgeons]
卷期号:: 1-9
标识
DOI:10.3171/2024.1.jns23920
摘要

OBJECTIVE The aim of this study was to examine the distribution of olfactory filaments (OFs) in the nasal mucosa to facilitate preservation of olfactory function in endonasal approaches and preparation of a nasoseptal flap. METHODS One formalin-fixed and 9 fresh cadaveric silicone-injected specimens with 20 total sides were studied to measure the distance of the OFs to the anatomical landmarks and compare the OF presence in the nasal septum mucosa (NSM) and ethmoidal mucosa (EM). RESULTS The mean distance from the first to the last OF was 19.37 ± 2.16 mm in the NSM and 23.44 ± 5.42 mm in the EM. The NSM had a mean of 7.55 ± 1.31 OFs and the EM had 14.3 ± 1.78. Average OF lengths were measured at 6.44 ± 1.48 (range 3.75–12.40) mm in the NSM and 8.05 ± 1.76 (range 4.14–13.20) mm in the EM. The mean values of the EM measurements were compared with those of the NSM; the number of OFs, the distance between the first and last OF, the average OF length, and the number of OFs between anterior and posterior ethmoidal arteries in the NSM were significantly less (p < 0.05) than those in the EM. The distance between the first OF to the nasal bone on the NSM was greater than on the EM. CONCLUSIONS Compared with the EM, the OFs are significantly fewer in number and smaller in size in the NSM. The uppermost edge of the nasoseptal flap incision in the NSM might be safer to start below 12 mm from the cribriform plate for OF protection.
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