Destrieux C, Velut S, Kakou M K, Lefrancq T, Arbeille B, Santini J J
Service de Neurochirurgie, Faculté de Medecine, Tours, France.
J Neurosurg. 1997 Jul;87(1):67-72. doi: 10.3171/jns.1997.87.1.0067.
The so-called Dorello's canal was studied in 32 specimens (16 human cadaver heads) injected with colored latex and fixed in formalin (28 specimens) or studied with microscopic and ultrastructural methods (four specimens). To avoid the differences usually encountered in the description of this area, the authors preferred to consider a larger space that they have named the petroclival venous confluence (PVC). It was located between two dural layers: inner (or cerebral) and outer (or osteoperiosteal). The PVC was quadrangular on transverse section. The posterior petroclinoid fold and the axial plane below the dural foramen of the abducent nerve (sixth cranial nerve) limited the PVC at the top and bottom, respectively. Its anteroinferior limit was the posterosuperior aspect of the upper clivus and outer layer of the dura mater. Its anterior limit was the vertical plane containing the posterior petroclinoid fold, and its posterior limit was the inner layer of the dura. The PVC was limited laterally by the medial aspect of the petrous bone apex and medially by the virtual sagittal plane extending the medial limit of the inferior petrosal sinus upward. The PVC was a venous space bordered by endothelium and continuous with the cavernous sinus, the basal sinus of the clivus, and the inferior petrosal sinus. There were trabeculations between the two dural layers. The petrosphenoidal ligament of Gruber may be regarded as a larger trabeculation, and it divided the PVC into a superior and an inferior compartment. The abducent nerve generally ran through the inferior compartment, where it was fixed to the surrounding dura mater. This nerve was only separated from venous blood by a meningeal sheath of varying thinness lined with endothelium. The clinical implications of these findings are discussed.
在32个标本（16个福尔马林固定的人类尸体头部，其中28个标本用彩色乳胶注射，4个标本用显微镜和超微结构方法研究）中对所谓的多雷洛管进行了研究。为避免该区域描述中常见的差异，作者倾向于考虑一个更大的空间，他们将其命名为岩斜静脉汇合处（PVC）。它位于两层硬膜之间：内层（或脑层）和外层（或骨膜层）。PVC在横切面上呈四边形。岩床皱襞后部和展神经（第六脑神经）硬膜孔下方的轴平面分别在顶部和底部限制了PVC。其前下边界是上斜坡的后上缘和硬膜外层。其前边界是包含岩床皱襞后部的垂直平面，后边界是硬膜内层。PVC的外侧由岩尖内侧界定，内侧由将岩下窦内侧边界向上延伸的虚拟矢状平面界定。PVC是一个由内皮细胞界定的静脉间隙，与海绵窦、斜坡基底窦和岩下窦相连。两层硬膜之间有小梁。格鲁伯岩蝶韧带可视为一个较大的小梁，它将PVC分为上、下两部分。展神经通常穿过下部，在那里它固定于周围的硬膜。该神经仅被一层厚度不一的内皮细胞衬里的脑膜鞘与静脉血隔开。讨论了这些发现的临床意义。
