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Analysis of the posterior ramus of the spinal nerve.

Research Project

Project/Area Number 22591719
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anesthesiology/Resuscitation studies
Research InstitutionAichi Medical University (2011-2012)
Nihon University (2010)

Principal Investigator

SAITO Toshiyuki  愛知医科大学, 医学部, 准教授 (50195997)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords脊髄神経 / 脊髄神経後枝 / ヒト / 比較解剖 / 三次元解析 / スンクス / 人体構造 / 脊柱起立筋 / 人体発生 / 腰痛 / 椎間関節炎 / 比較解部
Research Abstract

Abstract
Background: Knowledge of neural anatomy is fundamental for safe, efficacious use of regional anesthesia. Spinal column procedures, such as a facet joint block, require an accurate understanding of neural pathways relative to anatomic structure. Since Bogduk’s report it has been known that human lumbar posterior ramus of the spinal nerve (PRSN) comprises three, equally sized primary branches. However, inconsistencies and controversy remain over the exact locations and pathways of the peripheral portions of the PRSN branches. In this study, the authors investigated the detailed anatomy of the human PRSN.
Methods: The authors performed ventral dissection in seven cadavers to determine the layout of the PRSN between T10 and L4 spinal segments. They captured three-dimensional (3D) images with a laser scanner. For fine detail analysis, specimens from another cadaver were subjected to a modified Spalteholz technique to render all nonnerve tissue transparent. Computer graphics were used to create a 3D structural model.
Results: All three PRSN branches emanated from an ipsilateral origin and passed posterior to the transverse process. The medial PRSN branch consistently passed between the mammillary and accessory processes under the mammilloaccessory ligament. The intermediate branch passed between the longissimus and iliocostalis muscles and extended to the skin. The lateral branch traveled far lateral from the origin.
Conclusions: The authors created a 3D model of the PRSN in the lumbar segment, which maybe useful for planning surgical approaches to dorsal areas of the vertebral column. In addition, this knowledge may improve the accuracy of procedures involving the spinal column, particularly radiofrequency neurolysis of the facet joint.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (10 results)

All 2013 2012 2011 Other

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (6 results) Book (2 results)

  • [Journal Article] Analysis of the posterior ramus of the lumbar spinal nerve.2013

    • Author(s)
      Saito T et al.
    • Journal Title

      The structure of the posterior ramus.Anesthesiology 118

      Volume: 1 Pages: 88-94

    • Related Report
      2012 Final Research Report
  • [Journal Article] Analysis of the posterior ramus of the lumbar spinal nerve. The structure pf the posterior ramus spinal nerve.2013

    • Author(s)
      Toshiyuki Saito
    • Journal Title

      Anesthesiology

      Volume: 118 Pages: 88-94

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] 腰部脊髄神経後枝の形態と3D画像2012

    • Author(s)
      齋藤敏之
    • Organizer
      第117回日本解剖学会総会
    • Place of Presentation
      山梨大学医学部
    • Year and Date
      2012-03-30
    • Related Report
      2011 Annual Research Report
  • [Presentation] 腰部脊髄神経後枝の形態と3D画像2012

    • Organizer
      第117回日本解剖学会総会
    • Place of Presentation
      山梨大学
    • Related Report
      2012 Final Research Report
  • [Presentation] Three dimensional analysis of the lumbar posterior ramus of the spinal nerve.2012

    • Author(s)
      Toshiyuki Saito
    • Organizer
      Brit Assoc of Clin Anat, Summer Scientific Meeting 2012
    • Place of Presentation
      Swan Sea University, Wales
    • Related Report
      2012 Annual Research Report
  • [Presentation] The Anatomical reconsideration of the injection and spread of the anesthetic solution.2011

    • Author(s)
      齋藤敏之
    • Organizer
      ドイツ解剖学会ザクセン地区地方会
    • Place of Presentation
      ドイツ・ライプチヒ大学
    • Year and Date
      2011-02-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] 麻酔針と脊髄神経後枝の走行に関する基礎的研究

    • Organizer
      2010年日本麻酔科学会
    • Place of Presentation
      長崎
    • Related Report
      2012 Final Research Report
  • [Presentation] Three dimensional analysis of the lumbar posterior ramus of the spinal nerve.

    • Organizer
      2012 年イギリス臨床解剖学会
    • Place of Presentation
      スワンジー、ウェールズ
    • Related Report
      2012 Final Research Report
  • [Book] スンクスの生物学2011

    • Author(s)
      磯村源蔵監修
    • Total Pages
      679
    • Publisher
      学会出版センター
    • Related Report
      2010 Annual Research Report
  • [Book] スンクスの生物学、神経系、比較解剖学的に見た脊髄神経後枝。

    • Author(s)
      齋藤敏之ら
    • Publisher
      学会出版センター
    • Related Report
      2012 Final Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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