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J Neurol Surg B Skull Base 2018; 79(S 04): S334-S339
DOI: 10.1055/s-0038-1667044
WFSBS 2016
Georg Thieme Verlag KG Stuttgart · New York

Real-Time Navigation-Guided Drilling Technique for Skull Base Surgery in the Middle and Posterior Fossae

Authors

  • Toshihiro Ogiwara

    1   Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan

  • Tetsuya Goto

    1   Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan

  • Yosuke Hara

    1   Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan

  • Kazuhiro Hongo

    1   Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan
Further Information

Publication History

21 January 2018

06 June 2018

Publication Date:
17 July 2018 (online)

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Abstract

Objective The usefulness of the bony surface registration method for navigation system image-guided surgery in the lateral or prone position has been reported. This study was performed to evaluate the efficacy of our new real-time navigation-guided drilling technique with bony surface registration for skull base surgery in the middle and posterior fossae.

Methods The study included 29 surgeries for skull base tumors that required drilling of the petrous bone between January 2015 and December 2017 in Shinshu University Hospital. A navigation system was used for drilling of the petrous bone as follows: (1) some labyrinthine structures were marked by color in the source image and superimposed on the navigation image on the workstation preoperatively; (2) bony surface registration was performed with a three-dimensional (3D) skull reconstruction model in the operating room; (3) the petrous bone was drilled under navigation guidance with real-time view-through confirmation of 3D color-marked labyrinthine structures with observation under a microscopic operative view.

Results Real-time identification of some structures in the petrous bone was performed, and adequate and precise drilling of the petrous bone was achieved without the risk of labyrinthine perforation or stress. Using this method, surgeons do not need to alternate their gaze between the surgical field and the navigation screen.

Conclusions Due to the development of bony surface registration, this new technique is useful for drilling petrous bone in the middle and posterior fossa skull base surgeries.

Keywords

navigation system - image-guided neurosurgery - bony surface registration - skull base surgery - petrous bone

Disclosures

The authors have no personal financial or institutional interests in any of the drugs, materials, or devices discussed in the article. All authors, who are members of The Japan Neurosurgical Society (JNS), have registered online Self-reported COI Disclosure Statement Forms through the Web site for JNS members.


Patient Consent

The patient and next of kin/guardian consented to the submission of this original article to the journal.