Jian Lü1, Xianli Zhu. 1. Department of Neurosurgery, Second Hospital, Xi'an Jiaotong University, Shaanxi, People's Republic of China. lvjian70@hotmail.com
Abstract
OBJECT: The goal of this study was to investigate the microsurgical anatomy of the interpeduncular cistern and related arachnoid membranes. METHODS: The interpeduncular cistern and related arachnoid membranes were studied in eight Han Chinese adult human cadaveric brains with the aid of an operating microscope. The interpeduncular cistern is one area in the cranial cavity in which the arachnoid membranes and trabeculae are extremely luxuriant and complicated. The Liliequist membrane, the medial pontomesencephalic membrane, and the lateral pontomesencephalic membranes form the walls of the interpeduncular cisterns. The basilar artery (BA) bifurcation membrane, posterior perforated membrane, and arachnoid trabeculae fill the cistern. These arachnoid membranes and trabeculae adhere to the hypothalamus, brainstem, and oculomotor nerves, and bind the bifurcation of the BA, posterior cerebral arteries, superior cerebellar arteries, posterior communicating arteries, and their perforating branches. CONCLUSIONS: Arachnoid membranes and trabeculae complicate the exposure and dissection of lesions within the interpeduncular cistern. All arachnoid membranes and trabeculae should be dissected and incised sharply during surgical procedures. The BA bifurcation membrane and the posterior perforated membrane must be incised after opening the Liliequist membrane for sufficient exposure of deep structures within the interpeduncular cistern.
OBJECT: The goal of this study was to investigate the microsurgical anatomy of the interpeduncular cistern and related arachnoid membranes. METHODS: The interpeduncular cistern and related arachnoid membranes were studied in eight Han Chinese adult human cadaveric brains with the aid of an operating microscope. The interpeduncular cistern is one area in the cranial cavity in which the arachnoid membranes and trabeculae are extremely luxuriant and complicated. The Liliequist membrane, the medial pontomesencephalic membrane, and the lateral pontomesencephalic membranes form the walls of the interpeduncular cisterns. The basilar artery (BA) bifurcation membrane, posterior perforated membrane, and arachnoid trabeculae fill the cistern. These arachnoid membranes and trabeculae adhere to the hypothalamus, brainstem, and oculomotor nerves, and bind the bifurcation of the BA, posterior cerebral arteries, superior cerebellar arteries, posterior communicating arteries, and their perforating branches. CONCLUSIONS: Arachnoid membranes and trabeculae complicate the exposure and dissection of lesions within the interpeduncular cistern. All arachnoid membranes and trabeculae should be dissected and incised sharply during surgical procedures. The BA bifurcation membrane and the posterior perforated membrane must be incised after opening the Liliequist membrane for sufficient exposure of deep structures within the interpeduncular cistern.
Authors: José Aloysio da Costa Val Filho; Sebastião Nataniel da Silva Gusmão; Leopoldo Mandic Ferreira Furtado; Guaracy de Macedo Machado Filho; Fernando Levi Alencar Maciel Journal: Neurosurg Rev Date: 2021-02-23 Impact factor: 3.042
Authors: Nimer Adeeb; Aman Deep; Christoph J Griessenauer; Martin M Mortazavi; Koichi Watanabe; Marios Loukas; R Shane Tubbs; Aaron A Cohen-Gadol Journal: Childs Nerv Syst Date: 2012-09-08 Impact factor: 1.475