How I do it: inside-out bony window design in the retrosigmoid suboccipital approach.

Zhao Wang, Nian Jiang, Yuanyang Xie, Xuejun Li

Abstract read

In one paragraph

Article in Acta neurochirurgica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Zhao WangDepartment of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.

Nian JiangDepartment of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.

Yuanyang XieDepartment of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.

Xuejun LiDepartment of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China. lxjneuro@csu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe conventional retrosigmoid approach uses external landmarks like the asterion to locate the transverse-sigmoid sinus junction, but anatomical variability often makes these landmarks unreliable, risking inaccurate craniotomy and sinus injury.

methodWe describe an individualized "inside-out" technique using preoperative 3D reconstruction to identify the transverse sinus, sigmoid sinus, and their junction on the inner skull table and project them onto the outer table, enabling precise burr hole placement and patient-specific bone flap design.

conclusionThis inside-out approach offers a reliable, individualized method for safe and efficient retrosigmoid craniotomy, reducing sinus injury risk and optimizing surgical exposure.

Indexed as

Cranial SinusesCraniotomyOccipital BoneTransverse SinusesHumansImaging, Three-DimensionalIndividualized craniotomyInside-out localizationRetrosigmoid approachTransverse-sigmoid junction

Identifiers

PMID42406177

DOI10.1007/s00701-026-06958-5

PMCPMC13624027

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.