Improving bone-preserving effect following total hip arthroplasty by using a femoral stem made of Ti-33.6Nb-4Sn with a Young's modulus gradation(Fostering Joint International Research)

2017 Fiscal Year Final Research Report

• Project/Area Number: 15KK0213
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research)
• Allocation Type: Multi-year Fund
• Research Field: Biomedical engineering/Biomaterial science and engineering
• Research Institution: University of Miyazaki
• Principal Investigator: Yamako Go 宮崎大学, 工学部, 准教授 (50452074)
• Research Collaborator: Verdonschot Nico Radboud大学, メディカルセンター, 教授 ; Janssen Dennis Radboud大学, メディカルセンター, 助教 ; HANADA Shuji 東北大学, 金属材料研究所, 名誉教授 ; OCHIAI Kiyohide ミズホ株式会社, 五泉工場, 技術者 ; TOTORIBE Koji 宮崎大学, 医学部, 准教授 ; CHOSA Etsuo 宮崎大学, 医学部, 教授
• Project Period (FY): 2016 – 2017
• Keywords: バイオメカニクス / 人工股関節 / ストレスシールディング / 低弾性ステム / 傾斜機能性材料 / 骨リモデリング

Outline of Final Research Achievements

The aim of this study was to evaluate bone-preserving effects and structural strength on the newly developed femoral stem with Young’s modulus gradient for total hip arthroplasty. The bone remodeling simulation based on finite element analysis and strain-adaptive theory demonstrated that the Ti-33.6Nb-4Sn stem may have good bone maintaining performance and sufficient stem strength.

Free Research Field

バイオメカニクス