眼外肌的肌神经接头：距眶缘的距离和宽度。
Myoneural junctions of extraocular muscles: distances from the orbital rim and widths.
作者信息
Kakizaki Hirohiko, Zako Masahiro, Nakano Takashi, Asamoto Ken, Miyagawa Toshiaki, Iwaki Masayoshi
机构信息
Department of Ophthalmology, Aichi Medical University, Aichi-gun, Aichi-ken, 4801-1195, Japan.
出版信息
Ophthalmologica. 2006;220(2):87-93. doi: 10.1159/000090572.
PURPOSE
To examine both the distances from the orbital rim to the myoneural junctions (MNJs) and the widths of the MNJs of all extraocular muscles.
METHODS
Six orbits of 3 post-mortem cadavers were used. The cadavers (1 female and 2 males) were all Japanese with an average age of 76.3 years. The MNJs of the extraocular muscles and their motor nerves were exposed, and then the distance from the orbital rim to each MNJ and the width of each MNJ were examined.
RESULTS
The distance from the orbital rim to each MNJ in the 6 extraocular muscles ranged from 24.4 to 33.6 mm and the width of each MNJ ranged from 5.0 to 8.5 mm.
CONCLUSIONS
It is essential for orbital surgeons to understand both the distance from the orbital rim to MNJs and the widths of MNJs. This information not only aids the understanding of MNJ damage, but also prevents iatrogenic nerve impairment during orbital surgery.
目的
研究从眶缘到所有眼外肌肌神经接头（MNJ）的距离以及MNJ的宽度。
方法
使用3具尸体的6个眼眶。这些尸体（1名女性和2名男性）均为日本人，平均年龄76.3岁。暴露眼外肌及其运动神经的MNJ，然后检查从眶缘到每个MNJ的距离以及每个MNJ的宽度。
结果
6条眼外肌中从眶缘到每个MNJ的距离在24.4至33.6毫米之间，每个MNJ的宽度在5.0至8.5毫米之间。
结论
眼眶外科医生必须了解从眶缘到MNJ的距离以及MNJ的宽度。这些信息不仅有助于理解MNJ损伤，还能防止眼眶手术期间的医源性神经损伤。
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