Computational Analysis on Bone Adaptation in Resurfacing Hip Arthroplasty with Valgus-Varus Placement

Nor Aiman Nor Izmin, Fatin Hazwani, Mitsugu Todo, Abdul Halim Abdullah

研究成果: Chapter in Book/Report/Conference proceedingConference contribution


Resurfacing Hip Arthroplasty (RHA) is one of the solutions for young adults with hip osteoarthritis disease (OA). Despite the positive outcomes that were achieved after RHA, the method also has its risks and complications. Early bone failure might occur as consequences from the insertion of improper implant placement. In this study, an inhomogeneous material model of femoral bone was developed from CT-based images and reconstructed to represent resurfacing hip arthroplasty. Different placement of implant was assigned to investigate the effects of the placement to the bone adaptation. Comparison of the Drucker-Prager equivalent stress between the femur bone models with the presence of implant in varus and valgus was analyzed, hence to understand the possibility of bone failures after arthroplasty. A RHA implant was assigned with material properties of cobalt-chromium. The finite element study was simulating the condition of normal walking, with the loading magnitude applied was based on the patient’s body weight. The RHA implant placement is found to have a notable influence to the bone conditions especially on the varus +18° placement with stress increment up to 36.31% in the lateral region of the femur, also 31.61 and 19.34% in the medial region of the femur. Thus, the femoral bone models implanted in varus placement shows a higher possibility of bone failures in all conditions.

ホスト出版物のタイトルRecent Trends in Manufacturing and Materials Towards Industry 4.0 - Selected Articles from iM3F 2020, Malaysia
編集者Muhammed Nafis Osman Zahid, Amiril Sahab Abdul Sani, Mohamad Rusydi Mohamad Yasin, Zulhelmi Ismail, Nurul Akmal Che Lah, Faiz Mohd Turan
出版社Springer Science and Business Media Deutschland GmbH
出版ステータス出版済み - 2021
イベントInnovative Manufacturing, Mechatronics and Materials Forum, iM3F 2020 - Pekan, マレーシア
継続期間: 8 6 20208 6 2020


名前Lecture Notes in Mechanical Engineering


会議Innovative Manufacturing, Mechatronics and Materials Forum, iM3F 2020

All Science Journal Classification (ASJC) codes

  • 自動車工学
  • 航空宇宙工学
  • 機械工学
  • 流体および伝熱


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