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桥小脑角区Luschka孔的显微外科解剖及其血供。

Microsurgical anatomy of the foramen of Luschka in the cerebellopontine angle, and its vascular supply.

作者信息

Sharifi Mansoor, Ungier Ewa, Ciszek Bogdan, Krajewski Pawel

机构信息

Department of Anatomy, Center of Biostructure Research, Medical University of Warsaw, 5 Chalubinskiego Street, 02-004 Warsaw, Poland.

出版信息

Surg Radiol Anat. 2009 Jul;31(6):431-7. doi: 10.1007/s00276-009-0464-4. Epub 2009 Feb 4.

Abstract

Cerebellopontine angle and vascular supply of adjacent brainstem and cerebellum are susceptible to compression and eventual damage by tumors. Delicate and complicated neurosurgical operations in the cerebellopontine angles of the brainstem, where lateral recesses of fourth ventricle empty, are abundant especially operations in which foramina of Luschka are used as possible access to the floor of the fourth ventricle. So awareness and knowledge of the normal anatomical features of the region is valuable for neurosurgeons. Arteries of 40 human cerebella were injected with colored gelatin to investigate the microsurgical anatomy around the foramen of Luschka in the cerebellopontine angle. Two compartments of the foramen of Luschka were distinguished, choroidal part and the patent part. Seventy-four (92.5%) of foramina were open and only 6 (7.5%) foramina were closed. The mean distance between the foramen of Luschka and the anterior inferior cerebellar artery was 3.90 mm on the left side and 3.89 on the right side. The distance from the posterior inferior cerebellar artery was 7.08 and 5.81 mm to the left and right foramina of Luschka, respectively. In ten cases, tortuous vertebral artery was occupying the left cerebellopontine angle space and the foramen of Luschka.

摘要

桥小脑角以及相邻脑干和小脑的血管供应容易受到肿瘤的压迫并最终受损。在脑干桥小脑角进行精细而复杂的神经外科手术,此处是第四脑室外侧隐窝排空的部位,这类手术很多,尤其是那些利用Luschka孔作为进入第四脑室底部可能途径的手术。因此,了解该区域的正常解剖特征对神经外科医生很有价值。对40例人类小脑的动脉注射彩色明胶,以研究桥小脑角Luschka孔周围的显微外科解剖结构。Luschka孔分为两个部分,脉络丛部分和开放部分。74个(92.5%)孔是开放的,只有6个(7.5%)孔是封闭的。Luschka孔与小脑前下动脉之间的平均距离,左侧为3.90毫米,右侧为3.89毫米。小脑后下动脉与左侧和右侧Luschka孔的距离分别为7.08毫米和5.81毫米。在10例病例中,迂曲的椎动脉占据了左侧桥小脑角间隙和Luschka孔。

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