[与中耳手术相关的面神经管解剖学研究]

[Anatomic investigation of facial canal related to middle ear surgery].

Mei Z, Sun J, Ye F

Department of Otolaryngology, Anhui Provincial Hospital, Hefei 230001.

Lin Chuang Er Bi Yan Hou Ke Za Zhi. 1999 Nov;13(11):488-9.

Abstract

To avoid hurting facial nerve in middle ear surgery.

20 adult head cadavers with 40 sides tempotal bone were dissected and investigated.

Prevalence of dehiscent facial nerve canal was 32.5% (13/40), while 2.5% (1/40), 27.5% (11/40), 7.5%(3/40) incidence facial nerve canal were found in the labyrinthine, horizontal, vertical segment respectively. 2. Distance between the vertical portion of facial nerve and posterior semicircular canal was 0.62-5.08(2.48 +/- 0.63) mm. Interspace between the vertical portion of facial nerve and tympanic chorda was 0-4.62 (2.12 +/- 0.76) mm at the level of tympanic ditch, while interspace between the vertical portion of facial nerve and tympanic ditch was 2.96-8.82 (5.86 +/- 1.62) mm. 3. Distance between horizontal portion of facial nerve and lateral semicircular canal was 0-3.02 (1.92 +/- 0.84) mm. Interspace between horizontal portion of facial nerve and stapedial board was 0.92-4.06(2.14 +/- 0.90) mm.

Familiarity with facial nerve procession should be favorable to decrease facial paralysis with middle ear surgery.

摘要

避免中耳手术中损伤面神经。

对20具成年头颅尸体的40侧颞骨进行解剖研究。

面神经管裂的发生率为32.5%（13/40），而面神经管在迷路段、水平段、垂直段的发生率分别为2.5%（1/40）、27.5%（11/40）、7.5%（3/40）。2. 面神经垂直段与后半规管之间的距离为0.62 - 5.08（2.48±0.63）mm。在鼓沟水平，面神经垂直段与鼓索之间的间隙为0 - 4.62（2.12±0.76）mm，而面神经垂直段与鼓沟之间的间隙为2.96 - 8.82（5.86±1.62）mm。3. 面神经水平段与外半规管之间的距离为0 - 3.02（1.92±0.84）mm。面神经水平段与镫骨底板之间的间隙为0.92 - 4.06（2.14±0.90）mm。