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首页> 外文期刊>Annals of anatomy =: Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft >Anastomotic patterns of the facial parotid plexus (PP): A human cadaver study
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Anastomotic patterns of the facial parotid plexus (PP): A human cadaver study

机译：面部腮腺丛（PP）的吻合图案：人类尸体研究

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摘要

Details of the human facial parotid plexus (PP) are not readily accessible during ordinary anatomical teaching because of insufficient time and difficulties encountered in the preparation. For parotid and facial nerve surgery however, precise knowledge of PP is of crucial importance. The aim of this study was therefore to provide more details of PP in anatomic specimens. Following anatomical dissection, its location, syntopy and morphology were analyzed in 158 cervico-facial halves of 95 cadavers. The facial nerve (FN) divides into a larger temporo-facial and a smaller cervico-facial trunk. Both trunks branch, form PP, and thus form connections along six distinctive anastomotic types. These anastomoses may explain why accidental or essential severance of a supposed terminal facial branch fails to result in the expected muscle weakness. However, whereas earlier anatomical and clinical studies report connections between both trunks in 67-90% of the cases, our data indicate the presence of anastomoses only in 44%. One reason for this difference may be found in our microscope-assisted dissection in infratemporal regions from which the parotid gland has been removed. Thereby we tracked both FN-trunks in both directions - distally and proximally - and determined the exact origin of all terminal FN branches. This lower rate of occurrence of connections between both trunks reduces the chances of luckily preserved muscle innervation and enhances the risk of facial palsy after transection of a terminal branch. Accordingly, precise anatomical knowledge on PP should be renewed and transection of facial nerve branches avoided. (C) 2017 Elsevier GmbH. All rights reserved.
机译：在普通解剖学教学中，人类面部腮腺丛（PP）的细节在普通解剖学教学中不易获得，因为准备中遇到的时间不足和困难。然而，对于腮腺和面神经外科手术，PP的精确了解至关重要。因此，本研究的目的是在解剖标本中提供更多细节PP。在解剖学解剖之后，在95个尸体的158个宫颈面积中分析了其位置，术语和形态。面神经（Fn）分为较大的颞型面部和较小的颈部躯干。两个树干分支，形成PP，从而形成沿六种独特的吻合型类型的连接。这些吻合可以解释为什么假定的终端面部分支的偶然或基本的脱落未能导致预期的肌肉弱点。然而，虽然早期的解剖和临床研究报告了两种中继线之间的联系在67-90％的病例中，我们的数据表明亚纳斯的存在仅为44％。这种差异的一个原因可以在我们的显微镜辅助解剖中发现，植物腺的辅助剖面是从中被除去的植物腺体。因此，我们在两个方向上追踪两个FN树干 - 远侧和近侧 - 确定所有终端FN分支的精确起源。两条干之间的这种连接的较低发生率降低了幸运地保存的肌肉支配的机会，并提高了终端分支后面部麻痹的风险。因此，应恢复对PP的精确解剖学知识，并避免了面神经分支的转育。 （c）2017 Elsevier GmbH。版权所有。

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