Cheng Ye, Chen Yong, Zhou Zijian, Zhu Jiajing, Feng Yan, Zhao Gang
From the *Department of Neurosurgery, First Hospital of Jilin University, Chaoyang District; †Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun; and ‡Department of Radiology, First Hospital of Jilin University, Chaoyang District, Jilin Province, China.
J Craniofac Surg. 2015 Mar;26(2):537-40. doi: 10.1097/SCS.0000000000001517.
The aim of this study is to provide a new and comprehensive anatomic study of the posterior clinoid process (PCP) as well as data for PCP location to guide the surgeons in endoscopic surgery.
Computed tomography angiography images of 120 PCPs and structures around them in adults were reviewed. The measurement was on coronal, sagittal, and axial planes after multiplanar reconstruction. The length, width, and thickness were accessed for the best understanding of the feature of PCP. The distance from the base of the PCP and the middle lowest point of the sellar floor was measured to find the position of the PCP during the transphenoid approach.
PCP varies in width and thickness in different portions of it and is closely related to the internal carotid artery and posterior communicating artery, which makes it an important landmark during surgery.
The shape of PCP is various, and the analysis of its relationship to the important structures around it is of great value. In addition, the preoperative radiological evaluation plays a major role in patients considered for endoscopic sinus surgery. Detailed preoperative analysis of the anatomy of the sphenoid sinus and its boundaries is crucial in facilitating entry to the pituitary fossa and reducing intraoperative complications.
本研究旨在对后床突（PCP）进行全新且全面的解剖学研究，并提供PCP位置的数据，以指导外科医生进行内镜手术。
回顾了120例成人PCP及其周围结构的计算机断层扫描血管造影图像。在多平面重建后，于冠状面、矢状面和轴位面上进行测量。测量PCP的长度、宽度和厚度，以更好地了解其特征。测量PCP基部与鞍底最低中点之间的距离，以确定经蝶窦入路时PCP的位置。
PCP不同部位的宽度和厚度各异，且与颈内动脉和后交通动脉密切相关，这使其成为手术中的重要标志。
PCP形状多样，分析其与周围重要结构的关系具有重要价值。此外，术前影像学评估在考虑接受内镜鼻窦手术的患者中起主要作用。术前对蝶窦及其边界的解剖结构进行详细分析，对于顺利进入垂体窝和减少术中并发症至关重要。
