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| 篇名 |
Posterior clinoid process as a landmarker in current endoscopic-assisted neurosurgical approaches |
| 作者 |
Chi-Tun Tang, Nishanta B. Baidy, Kuan-Yin Tseng, Hsin-I Ma |
| 卷期/出版年月 |
45卷2期 (2012/4) |
| 頁次 |
45-50 |
| 摘要 |
Background/Introduction: The morphologic variations of posterior clinoid process
(PCP) anatomy have rarely been documented in the neurosurgical literature.
Purpose(s)/Aim(s): We investigated the PCP in terms of the endoscopic perspective, which will guide surgeons for safely maneuvering within the paraclinoid region and during the transcavernous approach.
Methods: Four alcohol-immersed cadaveric heads injected with pigmented silicone rubber were prepared for skull base dissections. We evaluated the three-dimensional reconstructed anatomy of PCPs. Bilateral pterional and endonasal transclival approaches were performed. In pterional corridors, we advanced the dissection through the optic-carotid triangle to observe the PCP; whereas in transclival approaches, we applied a transclival route to expose the dorsum sellae and PCP. Two angled (0 and 30) rigid endoscopes with outer diameters of
4 mm were introduced. By endoscopically viewing the surgical anatomy, the PCP and dorsum sellae were seen with ease in both approaches.
Results: All of the specimens showed an intact dorsum sellae and both posterior clinoid processes. Morphologic variation was described and recorded in each specimen. The posterior clinoid process is a landmark in important neurosurgical approaches. In our study we described the spatial guidance in either transcranial or transnasal endoscopic routes.
Conclusion: Taking advantage of the innovative integration of the video processing system, it facilitates the surgeons to work in a limited confined intracranial space. We are convinced that it provides practical information concerning the trans-PCP maneuver. |
| 關鍵詞 |
endonasal transclival surgeries;paraclinoid region;posterior clinoid process;pterional approaches;optic-carotid triangle |
| 分類 |
Original Articles |
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