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Modified Extradural Temporopolar Approach for Paraclinoid Aneurysms: Operative Nuance and Surgical Result

  • Naoki Otani
  • Terushige Toyooka
  • Satoru Takeuchi
  • Arata Tomiyama
  • Yasuaki Nakao
  • Takuji Yamamoto
  • Kojiro Wada
  • Kentaro Mori
Conference paper
Part of the Acta Neurochirurgica Supplement book series (NEUROCHIRURGICA, volume 129)

Abstract

Background. Extradural temporopolar approach can provide extensive exposure of the anterior clinoid process, which can prevent intraoperative neurovascular injury in anterior clinoidectomy for paraclinoid aneurysms. The present study investigates the usefulness of this modified technique, and operative nuances are discussed here.

Methods. We retrospectively reviewed the medical charts of 30 consecutive patients with paraclinoid aneurysms who underwent treatment with this modified extradural temporopolar approach between September 2009 and March 2016.

Results. Worsening of visual acuity was documented postoperatively in three patients (10.0%), and visual field function worsened in three patients (10.0%). Postoperative outcome was good recovery in all patients. No operation-related mortality occurred in the series.

Conclusion. Extradural anterior clinoidectomy via the modified extradural temporopolar approach is safe and may be recommended for surgical treatment of paraclinoid aneurysms to reduce the risk of intraoperative optic neurovascular injury.

Keywords

Extradural temporopolar approach Paraclinoid anevurysm Skull base surgery Microneurosurgery 

Notes

Conflict of Interest Statement

There is no potential COI which should be disclosed.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Naoki Otani
    • 1
  • Terushige Toyooka
    • 1
  • Satoru Takeuchi
    • 1
  • Arata Tomiyama
    • 1
  • Yasuaki Nakao
    • 2
  • Takuji Yamamoto
    • 2
  • Kojiro Wada
    • 1
  • Kentaro Mori
    • 1
  1. 1.Department of NeurosurgeryNational Defense Medical CollegeTokorozawaJapan
  2. 2.Department of NeurosurgeryJuntendo University Shizuoka HospitalIzunokuniJapan

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