Liu Muyuan, Wang Steven J, Benet Arnau, Meybodi Ali Tayebi, Tabani Halima, Ei-Sayed Ivan H
Department of Head and Neck, Cancer Hospital of Shantou University Medical College, Shantou, China.
Department of Otolaryngology - Head and Neck Surgery, University of Arizona College of Medicine, Tucson, Arizona.
Head Neck. 2018 Jul;40(7):1461-1465. doi: 10.1002/hed.25127. Epub 2018 Mar 22.
Despite preservation techniques, performing a parotidectomy carries a transient facial nerve dysfunction rate in up to 65% of cases and a permanent facial nerve weakness rate of 4%-7%.
The lateral aspect of the face and neck was exposed in 5 cadaveric heads (10 sides). The relationship of the posterior auricular artery (PAA) and the facial nerve was studied and recorded and descriptive measurements were taken.
In all specimens, the facial nerve trunk crossed the PAA inferior to the stylomastoid foramen and could be identified precisely by tracing the PAA proximally. The distance from the cross point of the PAA and the facial nerve to the external meatal cartilage was 5.2 ± 0.2 mm.
The PAA represents a potential new anatomic landmark for facial nerve identification at the main trunk.
尽管有保存技术，但进行腮腺切除术时，高达65%的病例会出现短暂性面神经功能障碍，永久性面神经麻痹率为4%-7%。
在5个尸体头部（10侧）暴露面颈部外侧。研究并记录耳后动脉（PAA）与面神经的关系，并进行描述性测量。
在所有标本中，面神经主干在茎乳孔下方穿过PAA，通过向近端追踪PAA可精确识别面神经。PAA与面神经交叉点至外耳道软骨的距离为5.2±0.2mm。
PAA是面神经主干识别的一个潜在新解剖标志。
