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Developments of surgical systems for skull base surgery and surgical education

Research Project

Project/Area Number 22K09258
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionKobe University

Principal Investigator

Uozumi Yoichi  神戸大学, 医学研究科, 助教 (50815446)

Co-Investigator(Kenkyū-buntansha) 篠山 隆司  神戸大学, 医学研究科, 教授 (10379399)
藤田 祐一  神戸大学, 医学部附属病院, 助教 (40895132)
中井 友昭  神戸大学, 医学研究科, 医学研究員 (60596089)
木村 英仁  神戸大学, 医学部附属病院, 講師 (90514753)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2023: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords頭蓋底外科 / 術者育成 / 暗黙知 / 形式知 / 聴神経腫瘍 / 手術成績 / 顔面神経機能予後 / 頭蓋底外科手術教育 / 手術機器開発 / 人材教育 / 手術用ナビゲーション
Outline of Research at the Start

具体的には
① 頭蓋底外科手術に最適な超音波破砕吸引装置の先端部の開発;腫瘍の内減圧に使う超音波破砕吸引装置の先端部を頭蓋底腫瘍の内減圧に最適化した形状のものとして開発する
② 顕微鏡、内視鏡、外視鏡、手術ナビゲーションおよび超音波破砕吸引装置の統合運用;手術中の現在位置を顕微鏡や手術モニター上に‘見える化’して術者の手術操作をリアルタイムナビゲーションする。その録画映像を事後検証(After Action Review; AAR)し、手術手技向上と技術継承に繋げる
③ 効果の検証;①と②によって手術成績向上と手術時間の短縮、ならびに若手医師の育成や学生の手術解剖や手術理解の向上が得られるか検証する

Outline of Final Research Achievements

We initially began developing surgical equipment for skull base surgery. However, after BrainLab Inc. released a device based on a similar concept, we shifted our focus to improving surgical outcomes and training young surgeons. Regarding outcomes, we published two international papers on MRI characteristics affecting facial nerve prognosis in vestibular schwannoma cases, and another on factors worsening delayed facial nerve palsy. We also created and published a preoperative prediction nomogram for facial nerve function. Through these studies, we clarified surgical tips and contributed to training young skull base surgeons. Their growth enabled us to publish papers on rare surgical cases.

Academic Significance and Societal Importance of the Research Achievements

術者を育てることに時間のかかる頭蓋底外科分野において、前任者の手術成績をまとめ論文化する過程で、手術成績を向上させるためのコツや暗黙知が言語化され、世代を超えてその暗黙知が共有できたことが最も大きな研究成果であった。手術機器を開発せずとも、尊敬する術者の手術成績を臨床論文に纏めることで、手術手技や手術成績を伝承できることを示すことが出来たことは学術的のみならず、社会的な意義があったと思われる。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (11 results)

All 2025 2024 2023 2022

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] A morphological features-based nomogram for predicting facial nerve function in the immediate postoperative period after vestibular schwannoma surgery2025

    • Author(s)
      Fujita Yuichi、Uozumi Yoichi、Fujimoto Yosuke、Nagashima Hiroaki、Kohta Masaaki、Tanaka Kazuhiro、Kimura Hidehito、Fujita Atsushi、Kohmura Eiji、Sasayama Takashi
    • Journal Title

      Journal of Neuro-Oncology

      Volume: - Issue: 2 Pages: 1-10

    • DOI

      10.1007/s11060-025-04984-4

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Subclassification of Koos grade 4 vestibular schwannoma: insights into tumor morphology for predicting postoperative facial nerve function2024

    • Author(s)
      Fujita Yuichi、Uozumi Yoichi、Sasayama Takashi、Kohmura Eiji
    • Journal Title

      Journal of Neurosurgery

      Volume: 140 Issue: 1 Pages: 127-137

    • DOI

      10.3171/2023.5.jns23715

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Delayed facial palsy after resection of vestibular schwannoma: does it influence long-term facial nerve functional outcomes?2024

    • Author(s)
      Fujita Yuichi、Uozumi Yoichi、Akutsu Nobuyuki、Sasayama Takashi、Kohmura Eiji
    • Journal Title

      Journal of Neurosurgery

      Volume: 140 Issue: 6 Pages: 1605-1613

    • DOI

      10.3171/2023.10.jns231581

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intrasellar Chordoma Mimicking Pituitary Macroadenoma with Hyperprolactinemia and Hypopituitarism: Clinical Images with a Surgical Video2023

    • Author(s)
      Fujita Yuichi、Uozumi Yoichi、Sasayama Takashi
    • Journal Title

      World Neurosurgery

      Volume: 170 Pages: 158-162

    • DOI

      10.1016/j.wneu.2022.11.031

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Presence of a fundal fluid cap on preoperative magnetic resonance imaging may predict long-term facial nerve function after resection of vestibular schwannoma via the retrosigmoid approach2022

    • Author(s)
      Fujita Yuichi、Uozumi Yoichi、Sasayama Takashi、Kohmura Eiji
    • Journal Title

      Journal of Neurosurgery

      Volume: 138 Issue: 4 Pages: 1-9

    • DOI

      10.3171/2022.8.jns221516

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Two-year outcome of delayed facial palsy after resection of vestibular schwannoma.2024

    • Author(s)
      Yoichi Uozumi
    • Organizer
      15th Congress of the European Skull Base Society
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 手術に関わる暗黙知の形式知化による頭蓋底外科術者育成の効率化を目指して2024

    • Author(s)
      魚住洋一、藤田祐一、篠山隆司
    • Organizer
      日本頭蓋底外科学会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 聴神経腫瘍術後の遅発性顔面神経麻痺は顔面機能予後悪化因子である2024

    • Author(s)
      魚住 洋一, 藤田 祐一, 阿久津 宣行, 篠山 隆司, 甲村 英二
    • Organizer
      聴神経腫瘍研究会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 手術に関わる暗黙知の形式知化による若手脳神経外科術者育成の効率化を目指して2024

    • Author(s)
      魚住洋一、藤田祐一、篠山隆司
    • Organizer
      日本脳神経外科学会総会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 合併症から学ぶ危険回避~凝固第XIII因子の術前評価の意義と臨床研 究の紹介2024

    • Author(s)
      魚住 洋一, 藤田 祐一, 長嶋 宏明, 藤本 陽介, 木村 英仁, 田中 一寛, 甲田 将章, 藤田 敦史, 篠山 隆司
    • Organizer
      日本脳腫瘍の外科学会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Long-term outcome of persistent postoperative headache after vestibular schwannoma surgery and its treatment strategy.2023

    • Author(s)
      Yoichi Uozumi
    • Organizer
      The 4th MASSIN Interim Meeting 2023
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research

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Published: 2022-04-19   Modified: 2026-01-16  

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