Clinical study on modified suboccipital retrosigmoidal craniotomy
Lu Zheng
Abstract：Objective To discuss the operative methods and the experience in modified suboccipital retrosigmoidal craniotomy.Methods From December 2009 to March 2013,the technical details of suboccipital retrosigmoidal craniotomy were improved.Straight scalp incision was used.The transverse-sigmoid sinus junction (TSSJ) was exposed via a single hole burred at the asterion.According to the course of the sinus,the bone flap was removed by milling cutter directly and replaced with titanium discs.The transverse sinuses did not need deliberately exposure.Results Totally 46 cerebello-pons angle tumors were removed via modified retrosigmoidal craniotomy.All the procedures of craniotomy were accomplished uneventful within 30 minutes averagely except for sigmoid sinus hemorrhage in 4 early cases.All lesions were exposed satisfied.Totally removals were performed in 43 cases and subtotal removals in 3 cases.The replacements of bone flap were in good condition with minor bone defect.No complication such as cerebral spinal fluid leakage was found.Conclusion Modified retrosigmoidal craniotomy is safe,easy to perform,and minimally invasive.
Keywords：Retrosigmoid approachCraniotomyBone flapNeurosurgery
Publication Date：2014-07-30
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：3( 992-994 )