The incidence of the caroticoclinoid foramen and the interclinoid osseous bridge is 21.88 ﹪ and 9.38 ﹪. 颈动脉床突孔和床突间骨桥的出现率分别为21.88%和9.38%。
The anterior-inferior venous space, the interclinoid space, the carotid cave and the clinoid segment of the internal carotid artery were exposed by removing the anterior clinoid process and sharply cutting open the superior and inferior dural rings along the anterolateral area of the artery. 磨除前床突,横行切开上、下硬膜环,则可显露床突间隙、海绵窦前下间隙、颈动脉穴和颈内动脉床突段。