Neurosurgical Importance on Temporal Branch of the Facial Nerve.

IF 1.4 4区 医学 Q4 CLINICAL NEUROLOGY Journal of Korean Neurosurgical Society Pub Date : 2024-11-01 Epub Date: 2024-08-13 DOI:10.3340/jkns.2024.0015
Funda Aksu, Selim Karabekir, Nuket Gocmen Karabekir
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Abstract

Objective: We aimed to determine anatomic features of the temporal branch (TB) of the facial nerve and its relation to various anatomic landmarks on the face in order to prevent damage in the surgical approach after head trauma or in planned neurosurgical interventions.

Methods: Nine male cadavers preserved with formalin, were bilaterally dissected under a microscope at the laboratory of anatomy department of the university. The anatomical features of the branch and branching pattern of facial nerve and its relationships with adjacent neurovascular structures were evaluated using descriptive statistical data.

Results: The mean distance at the lateral canthus level between the far most anterior branch and far most posterior branch of the TB (APD) was 14.93 mm. The mean distance to the tragus of the entrance point of the TB to the orbicularis oculi muscle (ETT) was 74.72 mm. The mean distance between the origin point of the TB to the tragus (TT) was 24.50 mm. The angle between the far most anterior branch and far most posterior branch at the level of the lateral canthus (APA) was minimum 15°, maximum 40° and the mean value of APA was 24.61°. The number of branches originating from the TB (NB) were one to three branches which lay under the zygomatic arch and two to five branches upper the zygomatic arch, respectively. The number of anastomosis between the TB and zygomatic branch (AN) varies between 1 and 4; AN was found to be less intense in 10 sides and very intense in eight sides.

Conclusion: The APA and APD value is mentioned for the first time in this study and nerve angle is considered to be as important as temporal branching in directing facial neurosurgical operations. We found that the unsafety zone may be exist for a 40 degree and 1.5 cm long area at the lateral canthus level, especially on the zygomatic arc where branching pattern is greater and 2.5 cm in front of the tragus. The data is significant for neurosurgeons to reach exactly this area without causing postoperative complications such as facial paralysis.

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面神经颞支的神经外科重要性。
目的我们的目的是确定面神经颞支(TB)的解剖特征及其与面部各种解剖标志物的关系,以防止在头部创伤后的手术入路或计划中的神经外科干预中造成损伤:方法:在大学解剖学系实验室的显微镜下,对 9 具用福尔马林保存的男性尸体进行双侧解剖。采用描述性统计数据评估了面神经分支的解剖特征、分支模式及其与邻近神经血管结构的关系:结果:面神经最前分支和最后分支(APD)在外侧眦水平的平均距离为 14.93 毫米。眼轮匝肌入口点(ETT)到外眦的平均距离为 74.72 毫米。肺结核起源点到蝶窦(TT)的平均距离为 24.50 毫米。最前分支与最后分支在外侧眦水平的夹角(APA)最小为 15°,最大为 40°,APA 的平均值为 24.61°。起源于 TB(NB)的分支数量分别为颧弓下方的 1 至 3 个分支和颧弓上方的 2 至 5 个分支。TB 和颧骨分支(AN)之间的吻合数目在 1 到 4 之间变化;发现 10 个侧的 AN 不那么强烈,8 个侧非常强烈:本研究首次提到了 APA 和 APD 值,并认为神经角在指导面部神经外科手术方面与颞支同样重要。我们发现,外眦角水平 40 度、1.5 厘米长的区域可能存在不安全区,尤其是在颧弧处,该处的分支模式更多,且位于外眦角前方 2.5 厘米处。这些数据对于神经外科医生准确到达这一区域而不引起术后并发症(如面瘫)具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.90
自引率
6.20%
发文量
109
审稿时长
3-8 weeks
期刊介绍: The Journal of Korean Neurosurgical Society (J Korean Neurosurg Soc) is the official journal of the Korean Neurosurgical Society, and published bimonthly (1st day of January, March, May, July, September, and November). It launched in October 31, 1972 with Volume 1 and Number 1. J Korean Neurosurg Soc aims to allow neurosurgeons from around the world to enrich their knowledge of patient management, education, and clinical or experimental research, and hence their professionalism. This journal publishes Laboratory Investigations, Clinical Articles, Review Articles, Case Reports, Technical Notes, and Letters to the Editor. Our field of interest involves clinical neurosurgery (cerebrovascular disease, neuro-oncology, skull base neurosurgery, spine, pediatric neurosurgery, functional neurosurgery, epilepsy, neuro-trauma, and peripheral nerve disease) and laboratory work in neuroscience.
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