Craniotomy around the Occipital Condyle : How to drill the Lateral Part of the Foramen Magnum, Jugular Tubercle, and the Occipital Condyle(SPECIAL ISSUES : Essential Standard Techniques of the Microsurgery)

DOI Web Site 19 References Open Access

Bibliographic Information

Other Title
  • Condyle近傍の開頭 : Foramen magnum外側部とjugular tubercleおよびcondyleの削除法(<特集>これだけはマスターしたいMicrosurgeryの基本手技)

Search this article

Description

Methods for safe drilling in a craniotomy around the occipital condyle are mentioned and the differences in the operative view between before and after removal of each bony element are discussed. In the field obtained just after craniotomy, the lateral rim of the foramen magnum (posterior part of the jugular tubercle) obstructs the view toward the anterior part of the posterior fossa. Drilling of this area, carried out by following the posterior condylar emissary vein and imaging the sigmoid-magnum triangle, exposes the lower cerebellopontine angle and the region ventral to the brainstem. In order to drill down the high jugular tubercle, drilling of part of the occipital condyle is also required to make room to reach the tuberclr toward its summit, as the dura covering the posterior part of the tubercle is hard to elevate. Additional drilling of the posterior part of the occipital condyle makes a wider space available, especially around the vertebral artery. Therefore, a specifically tailored operation should be scheduled for each case, considering which bony part is to be removed.

Journal

References(19)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top