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Development of new type of surface total hip replacement

Research Project

Project/Area Number 02404061
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field Orthopaedic surgery
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

SUGIOKA Yoichi  Kyushu University, Faculty of Medicine, Professor, 医学部, 教授 (30037361)

Co-Investigator(Kenkyū-buntansha) MIURA Hiromasa  Kyushu University, Faculty of Medicine, Research Associate, 医学部, 助手 (10239189)
HAYASHI Kazuo  Kyushu University, Faculty of Medicine, Associate Professor, 医学部, 助教授 (20180961)
有馬 準一  整形外科福岡県立粕屋新光園, 医師
Project Period (FY) 1990 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥25,100,000 (Direct Cost: ¥25,100,000)
Fiscal Year 1993: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1992: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1991: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1990: ¥20,400,000 (Direct Cost: ¥20,400,000)
Keywordssurface total hip replacement / biomechanics / finite element method / rigid-body spring model / hydroxyapatite
Research Abstract

Rigid fixation of a femoral componet is essential to achieve better results of surface total hip replacement. The basic concept of a new femoral component is to prevent stress shielding and avascular necrosis of the femoral head by minimizing the resurfaced area in comparison to the currently available surface replacement. A small peg is added to the center of the implant in order to provide the initial rigid fixation. Biomechanical analysis showed that optimal covering angle of the femoral component is 180 degrees and an acetabular comonent with 140 degrees of open angle does not tend to dislocate under physiological loading conditions. Animal experiments showed that hydroxyapatite coated titanium achieved better bone induction and fixation rigidity under loading conditions.
Implants for human were developed on the basis of the biomechanical and animal studies. Strength test of the femoral component under vertical compression force revealed adequate mechanical strength. Instruments were also developed for easy and precise operation. We are simulating the operation using plastic models made from CT of patients to improve the instruments. Clinical application of the new surface replacement will start after mechanical tests of the implant and development of the instruments are completed.

Report

(5 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] 三浦裕正: "表面置換型人工股関節の力学解析(第1報)" 整形外科バイオメカニクス. 13. 349-352 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 三浦裕正: "表面置換型人工股関節の力学解析(第2報)" 日本臨床バイオメカニクス学会. 14. 31-35 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Hayashi: "Re-evaluation of the biocompatibility of bioinert ceramics in vivo" Biomaterials. 13. 195-200 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Hayashi: "Comparison of bone-implant interface shear strength of solid hydroxyapatite and hydroxyapatite-coated titanium implants" J.Biomedical Materials Research. 27. 557-563 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Hayashi: "Bone-implant interface machanics of in vivo bio-inert ceramics" Biomaterials. 14. 1173-1179 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Hayashi: "Comparison of bone-implant interface shear strength of porous titanium and hydroxyapatite-coated grooved titanium" Bioceramics. 6. 455-459 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] H.Miura: "Hip Biomechanics Biomechanical Analysis of a New Type of Surface Total Hip Replacement" Springer-Verlag Tokyo, 225-237 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hiromasa Miura: "Biomechanical analysis of surface total hip replacement." Proceedings of 1991 annual Meeting of Japanese society for Orthopaedic Biomechanics. 13. 349-352 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hiromasa Miura: "Biomechanical analysis of surface total hip replacement, second report." Proceedings of 1992 annual Meeting of Japanese society for Orthopaedic Biomechanics. 14. 31-35 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kazuo Hayashi: "Re-evaluation of the biocompatibility of bioinert ceramics in vivo." Biomaterials. 13. 195-200 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kazuo Hayashi: "Comparison of bone-implant interface shear strength of solid hydroxyapatite and hydroxyapatite-coated titanium implants." J.Biomedical Materials Research. 27. 557-563 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kazuo Hayashi: "Bone-implant interface mechanics of in vivo bio-inert ceramics." Biomaterials. 14. 1173-1179 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Kazuo Hayashi: "Comparison of bone-implant interface shear strength of porous titanium and hydroxyapatite-coated grooved titanium." Bioceramics. 6. 455-459 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Hiromasa Miura: Biomechanical Analysis of a New Type of Surface Total Hip Replacement. Hip Biomechanics. Springer-Verlag Tokyo, (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] K.Hayashi: "Comparison of bone-implant interface shear strength of solid hydroxyapatite and hydroxyapatite-coated titanium implants" J.Biomedical Materials Research22GD01:27. 557-563 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Hayashi: "Bone-implant interface machanics of in vivo bio-inert ceramics" Biomaterials. 14. 1173-1179 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Hayashi: "Comparison of bone-implant interface shear strenght of porous titanium and hydroxyapatite-coated grooved titanium" Bioceramics. 6. 455-459 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Miura: "Hip Biomechanics" Biomechanical Analysis of a New Type of Surface Total Hip Replacement(Springer-Verlag Tokyo), 225-237 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Kazuo Hayashi: "Re-evaluation of the biocompatibility of bioinert ceramics in vivo." Biobaterials. 13. 195-200 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 三浦 裕正: "表面置換型人工股関節の力学解析(第1報)" 整形外科バイオメカニクス. 13. 349-352 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] 有馬 準一: "Transtrochanteric valgus osteotomyの剛体バネモデル解析" 整形外科バイオメカニクス. 13. 165-169 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] 三浦 裕正: "表面置換型人工股関節の力学解析(第2報)" 整形外科バイオメカニクス. 14. (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Hiromasa Miura: "Biomechanical analysis of a new type of surface total hip replacement." Current Concepts ih Hip Biomechanics. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Hayashi K.: "Quantitative analysis of in vivo tissue responses to titaniumーoxide and hydroxyapatiteーcoated titanium alloy." Journal of Bioned.Mater.Res.25. 515-523 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 林 和生: "ハイドロキシアパタイトコ-ティングチタン合金について" 第13回日本バイオマテリアル学会予稿集. 13. 30 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 林 和生: "ハイドロキシアパタイトコ-ティングチタン合金のin vivoにおける長期的観察" Orthopaedic ceramic Implants.11. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 三浦 裕正: "表面置換型人工股関節の力学的解析(第一報)" 整形外科バイオメカニクス. 13. (1992)

    • Related Report
      1991 Annual Research Report

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Published: 1990-04-01   Modified: 2019-02-28  

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