• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of Prediction System for Spine Morphology in Treatment of Pectus Excavatum

Research Project

Project/Area Number 18K12034
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 90110:Biomedical engineering-related
Research InstitutionKagawa University

Principal Investigator

NAGASAO Tomohisa  香川大学, 医学部, 教授 (20245541)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords漏斗胸 / 形成外科 / 有限要素法 / バイオメカニクス / シミュレーション / 胸郭変形 / 力学解析 / 有限要素解析 / 胸郭 / 手術
Outline of Final Research Achievements

The spine often gradually deforms during the correction of the thorax in the treatment of pectus excavatum. Surgeons need to avoid this complication to achieve optimal results. So, we conducted the present study to create a system to predict this complication.
We innovated a dynamic technique to simulate the correction. Specifically, we developed a technique in which thoraxes of the patients are transformed computer models. By using these simulation models, we calculated the stresses working on the spines of the patients. Then we evaluated the co-relation between the Cobb angle and the stresses working on the spine. Positive co-relation exists between the two data, suggesting the deformity of the spine is predictable by dynamic simulation.

Academic Significance and Societal Importance of the Research Achievements

漏斗胸の発生頻度は高く、500人に1人である。本邦においても毎年、多くの施設で手術が行われている。しかし症例によっては必ずしも良好な結果は得られない。漏斗胸は前胸部の変形疾患であるが、胸部と背部は文字通り表裏一体であるので、一定頻度の患者においては脊椎の側弯を併発している。こうした患者に対して通常の方法で手術を行うと、脊椎の側弯が悪化することがある。この事実について症例報告が散見されるが、広く外科医の知るところには至っていない。本研究の施行はこの問題点を明示化し、合併症の回避を啓蒙する点と、それを回避する方法を示唆した点で、意義を有する。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (9 results)

All 2021 2020 2019 2018 Other

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (1 results) Remarks (3 results)

  • [Journal Article] Outcomes of the Nuss procedure for pectus excavatum in adults.2021

    • Author(s)
      Sakamoto Y, Yokoyama Y, Nagasao T, Yamada Y, Yamada M, Jinzaki M, Kishi K.
    • Journal Title

      J Plast Reconstr Aesthet Surg.

      Volume: 53 Issue: 9 Pages: 2-6

    • DOI

      10.1016/j.bjps.2020.12.068

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Bone-cartilage proportion in deformed ribs of male pectus excavatum patients.2019

    • Author(s)
      Nagasao T, Aizezi N, Noguchi M, Morotomi T, Kudo H, Kogure T.
    • Journal Title

      J Plast Surg Hand Surg

      Volume: 53 Issue: 3 Pages: 143-148

    • DOI

      10.1080/2000656x.2018.1554532

    • Related Report
      2020 Annual Research Report 2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 力学シミュレーションを応用した漏斗胸の術式の変革2021

    • Author(s)
      永竿智久
    • Organizer
      第64回日本形成外科学会総会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 漏斗胸の治療2019

    • Author(s)
      永竿智久
    • Organizer
      日本シミュレーション外科学会
    • Related Report
      2019 Research-status Report
  • [Presentation] Prediction of Body Shape by Biomechanical Technic2018

    • Author(s)
      Tomohisa NAGASAO
    • Organizer
      World Society of Simulation Surgery
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] Treatment of Chest Deformity2020

    • Author(s)
      NAGASAO Tomohisa
    • Total Pages
      210
    • Publisher
      Design Egg
    • ISBN
      4815022011
    • Related Report
      2020 Annual Research Report
  • [Remarks]

    • URL

      https://www.med.kagawa-u.ac.jp/~keisei/routo/

    • Related Report
      2020 Annual Research Report
  • [Remarks] むねのかたち研究室

    • URL

      https://www.med.kagawa-u.ac.jp/~keisei/routo/

    • Related Report
      2018 Research-status Report
  • [Remarks] 世界に誇る最新技術

    • URL

      https://www.med.kagawa-u.ac.jp/~keisei/routo/about/only/tech.php

    • Related Report
      2018 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi