[经乙状窦后入路观察桥小脑角区脑神经]

[Observation of cranial nerves in the cerebellopontine angle region by retrosigmoid approach].

作者信息

Xu Weihua, Sun Guangbin, Chen Xiaoping, Chen Qun, Fang Qin, Sun Na, Zhang Yi, Zhang Jingfei, Ren Mingzhong

机构信息

Department of Otorhinolaryngology, Pudong Gongli Hospital, Shanghai, 200136, China.

出版信息

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2009 May;23(10):454-5.

PMID:19670628

Abstract

OBJECTIVE

To investigate the anatomical structures of cranial nerves in the cerebellopontine angle region to offer anatomical data for clinical operation.

METHOD

A total of 52 adult cadaveric heads fixed in 10% formalin were used for this study. After cutting cerebellum and meningeal between transverse and sigmoid sinus, simulate operating method of retrosigmoid approach to observe the cranial nerves.

RESULT

External diameter and length of left V, VII, VIII, IX cranial nerves are (2.54 +/- 0.84) mm and (6.79 +/- 2.51) mm, (1.18 +/- 0.31) mm and (9.89 +/- 2.66) mm, (2.17 +/- 0.52) mm and (9.92 +/- 2.61) mm, (0.77 +/- 0.24) mm and (10.34 +/- 3.12) mm respectively. External diameter and length of right V , VII, VIII, IX cranial nerves are (2.52 +/- 0.86) mm and (6.91 +/- 2.66) mm, (1.14 +/- 0.31) mm and (10 +/- 2.96) mm, (2.13 +/- 0.63) m and (10.09 +/- 2.93) mm, (0.790.29) mm and (10.17 +/- 3.06) mm. intermedius nerve locate between facial nerve and acoustic nerve, external diameter of intermedius nerve is (0.47 +/- 0.91) mm (left) and (0.37 +/- 0.07) mm (right). Length of vagal nerve is (10.44 +/- 2.57) mm (left), (9.91 +/- 2.91) mm (right), rootlets of f vagal nerve is 6.37 +/- 2.26 (left) and 6.33 +/- 2.38 (right). external diameter of accessory nerve is (0.76 +/- 0.16) mm (left) and (0.81 +/- 0.19) mm (right).

CONCLUSION

This study provide anatomical data for retrosigmoid approach in the cerebellopontine angle region.

摘要

目的

研究桥小脑角区脑神经的解剖结构，为临床手术提供解剖学数据。

方法

本研究共使用52个用10%甲醛固定的成人尸体头颅。在横窦和乙状窦之间切断小脑和脑膜后，模拟乙状窦后入路的手术方法观察脑神经。

结果

左侧Ⅴ、Ⅶ、Ⅷ、Ⅸ脑神经的外径和长度分别为(2.54±0.84)mm和(6.79±2.51)mm、(1.18±0.31)mm和(9.89±2.66)mm、(2.17±0.52)mm和(9.92±2.61)mm、(0.77±0.24)mm和(10.34±3.12)mm。右侧Ⅴ、Ⅶ、Ⅷ、Ⅸ脑神经的外径和长度分别为(2.52±0.86)mm和(6.91±2.66)mm、(1.14±0.31)mm和(10±2.96)mm、(2.13±0.63)mm和(10.09±2.93)mm、(0.79±0.29)mm和(10.17±3.06)mm。中间神经位于面神经与听神经之间，中间神经的外径左侧为(0.47±0.91)mm，右侧为(0.37±0.07)mm。迷走神经长度左侧为(10.44±2.57)mm，右侧为(9.91±2.91)mm，迷走神经的根丝左侧为6.37±2.26，右侧为6.33±2.38。副神经外径左侧为(0.76±0.16)mm，右侧为(0.81±0.19)mm。