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

1991 Fiscal Year Final Research Report Summary

Post Percutaneous Intradiscal Laser Discectomy

Research Project

Project/Area Number 02557056
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Orthopaedic surgery
Research InstitutionHokkaido University (1992)
University of Tokyo (1990-1991)

Principal Investigator

YONEZAWA Takumi  Instructor, Faculty of Medicine, Univesity of Tokyo, 医学部(医), 助手 (50221677)

Co-Investigator(Kenkyū-buntansha) MABUCHI Kunihiko  Assoc. Prof., Research Center for Advanced Science and Technology, University of, 先端科学技術センター, 助教授 (50192349)
CHINZEI Tuneo  Instructor, Research Centor for Advanced Science and Technology, University of T, 先端科学技術センター, 助手 (20197643)
ABE Yuusuke  Faculty of Medicine, Univesity of Tokyo, 医学部, 助手 (90193010)
FUJIMASA Iwao  Prof., Research Center for Advanced Science and Technology, University of Tokyo, 先端科学技術センター, 教授 (30010028)
Project Period (FY) 1990 – 1992
KeywordsDisc Herniation / Nd : YAG Laser / Nucleus Pulposus / vaporization / Perculaneous Operation / Intradiscal Pressure
Research Abstract

Percutaneous intradiscal laser nucleotomy (PILN) has been studied in our laser laboratory. In the experimental studies, Sacrificed or anesthetized rabbit and goat lumbar discs were used. This experimental study took following process ; 1) to confirm the possibility of nucleus vaporization with laser, 2) to confirm the usefuldlss of this method concerned with histological changes and intradiscal pressure decrement, 3) to confirm the safety with thermography and thermocouples, 4) to develop and improve laser devices, original double lumen needle and tip type pressure transducer for feasibility, 5) to establish evaluation methods with pressure tra'nsducer and MRI index histograms. From 1 to 5 basic studies, the procedure of this method with ND : YAG laser was almost established. And nucleus pulposus absorvance was measured. From absorvance, we guessed that PILN had two type treatment for lumbar disc hernia. The one was nucleolysis and the other was nucleotomy.
Now we are starting for clinical use. And intervertebral bone fusion through needle has been studied after PILN.

  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 米沢 卓実: "レ-ザ-光による椎間板ヘルニアの治靖:圧計測を含むシステムの開発" 日本レ-ザ-医学会誌. 10ー3. 285-286 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tokumi Yonezawa: "The System End Procedures of Pereutaneous Intradiscal Laser Nucleotomy" Spine. 15-11. 1175-1185 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 米澤 卓実: "経皮的椎間板髄核の蒸散法" 臨床整形外科. 26ー4. 553-560 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Yonezawa: "Percutaneous Intracliscal Laser Nucleotomy" Medical & Biological Engineering & Computing. 29. 591 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 米澤 卓実: "経皮的的椎間板蒸散法" 医用電子と生体工学. 30. (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 米澤 卓実: "経皮的椎間板髄核の蒸散法" 第12回日本レ-ザ-医学大大会 大会論文集. (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 米澤 卓実: "Percutaneous Lumber discectomy edit by H.M.Mayer & M.Brock" SprigerーVerlage Berlin Heihellerg, 218 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 米澤 卓実: "医科学大事典 編集(岡 博,和田 攻)" 講談社, 228 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Yonezawa, et al: "A therapy of lumbar disc hernia with laser : development of system contained with pressure measurement" J. of Japan Soc. for Laser Med.10 (3). 285-286 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Yonezawa, et al: "The System and Procedures of Percutaneous Intradiscal Laser Nucleotomy" J. of SPINE. 15 (11). 1175-1185 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Yonezawa, et al: "Percutaneous Intradiscal Vaporization with Laser" Clinical Orthopedic Surgery (in Japanese). 26 (4). 553-560 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Yonezawa, et al: "Percutaneous Intradiscal Laser Nucleotomy" Bio Medical Engineering (BME) (in Japanese). 29 (Suppl). 591 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Yonezawa, et al: "Percutaneou Intradiscal Laser Discectomy" J. of Japan Soc. for Laser Med.(1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Yonezawa, et al: Springer - Verlage in Berlin Heidelberg. Percutaneous Lumbar Discectomy, edit by H. M. Mayer and M. Brock (Percutaneou Intradiscal Laser Nucleotomy), (1989)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1993-03-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi