Though Total Hip Arthroplasty (THA) is being performed with greater frequency every year for patients with endstage arthritis of hip, mechanical fatigue of bone cement leading to damage accumulation is implicated in the loosening of cemented hip components. This fatigue failure of bone cement has been reported to be the result of high tensile and shear stresses at the bone cement. The aim of this study is to design the optimum shape of femoral component of a THA that minimizes the peak stress value of maximum principal stress at the bone cement and to validate the FEM results by comparing numerical stress with experimental ones. The p-version three-dimensional Finite Element Method (FEM) combined with an optimization procedure was used to perform the shape optimization. Moreover the strain in the cement mantle surrounding the cemented femoral component of a THA was measured in vitro using strain gauges embedded within the cement mantle adjacent to the developed femoral stem to validate the optimization results of FEM.
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ASME 2002 International Mechanical Engineering Congress and Exposition
November 17–22, 2002
New Orleans, Louisiana, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
0-7918-3650-9
PROCEEDINGS PAPER
Shape Optimization of Femoral Components of an Artificial Hip Prosthesis Using the Three-Dimensional P-Version Finite Element Study and the In Vitro Measurement of Strain in the Bone Cement
Masaru Higa,
Masaru Higa
Hokkaido University, Sapporo, Japan
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Ikuya Nishimura,
Ikuya Nishimura
Hokkaido University, Sapporo, Japan
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Kazuhiro Matsuda,
Kazuhiro Matsuda
Hokkaido University, Sapporo, Japan
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Hiromasa Tanino,
Hiromasa Tanino
Asahikawa Medical College, Asahikawa, Japan
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Yoshinori Mitamura
Yoshinori Mitamura
Hokkaido University, Sapporo, Japan
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Masaru Higa
Hokkaido University, Sapporo, Japan
Ikuya Nishimura
Hokkaido University, Sapporo, Japan
Kazuhiro Matsuda
Hokkaido University, Sapporo, Japan
Hiromasa Tanino
Asahikawa Medical College, Asahikawa, Japan
Yoshinori Mitamura
Hokkaido University, Sapporo, Japan
Paper No:
IMECE2002-33008, pp. 339-340; 2 pages
Published Online:
June 3, 2008
Citation
Higa, M, Nishimura, I, Matsuda, K, Tanino, H, & Mitamura, Y. "Shape Optimization of Femoral Components of an Artificial Hip Prosthesis Using the Three-Dimensional P-Version Finite Element Study and the In Vitro Measurement of Strain in the Bone Cement." Proceedings of the ASME 2002 International Mechanical Engineering Congress and Exposition. Advances in Bioengineering. New Orleans, Louisiana, USA. November 17–22, 2002. pp. 339-340. ASME. https://doi.org/10.1115/IMECE2002-33008
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