茎突构成颞下窝鼻内暴露的后外侧边界。这项研究旨在探索通过鼻内走廊向外侧茎后空间进行远外侧延伸的可行性。对六个尸体标本(12侧)进行了鼻内解剖。在内窥镜鼻内进入咽旁间隙后,去除颞骨的茎突和鼓室部分,以显示颈静脉球和颞外面神经。使用手术导航设备测量从前鼻棘到相关标志的距离。通过鼻内走廊,只有颈静脉球的前下方面暴露。相反,颞外面神经可以充分暴露,颞深神经可以转移到茎乳孔。从V3的鼻棘到后束的平均水平距离,茎突,面神经分别为79.33±3.41,97.10±4.74,104.77±4.42mm,分别。通过鼻内走廊进入外侧茎后间隙是可行的,可能提供一种替代方法来解决延伸到该区域的选定病变。颞深神经的直径与面神经的直径相似;因此,提供面神经的潜在神经支配.
The styloid process constitutes the posterolateral boundary for an
endonasal exposure of the infratemporal fossa. This study aims to explore the feasibility of a far-lateral extension to the lateral poststyloid space via an
endonasal corridor. An
endonasal dissection was performed on six cadaveric specimens (12 sides). Following an endoscopic endonasal access to the parapharyngeal space, the styloid process and the tympanic portion of the temporal bone were removed to reveal the jugular bulb and the extratemporal facial nerve. Distances from the anterior nasal spine to the relevant landmarks were measured using a surgical navigation device. Through an
endonasal corridor, only the anteroinferior aspect of the jugular bulb was exposed. Conversely, the extratemporal facial nerve could be sufficiently exposed, and the deep temporal nerve could be transposed to the stylomastoid foramen. The average horizontal distances from the nasal spine to the posterior tract of V3 , styloid process, and facial nerve were 79.33 ± 3.41, 97.10 ± 4.74, and 104.77 ± 4.42 mm, respectively. Access to the lateral poststyloid space via an
endonasal corridor is feasible, potentially providing an alternative approach to address select lesions extending to this region. The deep temporal nerve has a similar diameter to that of the facial nerve; thus, providing potential reinnervation of the facial nerve.