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<p>The shift from single mobility to dual mobility bearing designs in total hip prostheses is driven by their ability to improve range of motion, enhance articulation stability, reduce impingement risk, and lower the likelihood of wear and osteolysis. The integration of square-shaped micro-textured surfaces on bearing components further enhances biotribological performance. This study investigates the lubrication behavior of square-shaped micro-textured surfaces on the femoral head and inner liner components of dual mobility total hip prostheses, particularly under bowing movements associated with Muslim prayer using two-way fluid–structure interaction (FSI) technique. Various biomaterials for the femoral Head, including stainless steel 316L (SS 316L), cobalt chromium molybdenum (CoCrMo), aluminum oxide (Al<sub>2</sub>O<sub>3</sub>), and zirconium dioxide (ZrO<sub>2</sub>), were compared in terms of hydrodynamic pressure, load support, von Mises stress, and deformation. The study demonstrates a strong correlation (<i>R</i><sup>2</sup> = 0.94) between simulated hydrodynamic pressure and validated literature data, confirming the reliability of the model. Key findings include that Al<sub>2</sub>O<sub>3</sub> on the textured inner liner achieved the highest hydrodynamic pressure, an improvement of approximately 20% over SS 316L, and exhibited one of the lowest von Mises stress values (7.55&#xa0;MPa), outperforming SS 316L and CoCrMo. The numerical results also indicated that Al<sub>2</sub>O<sub>3</sub> resulted in minimal deformation and the highest load-bearing capacity, demonstrating its exceptional performance. This study emphasizes the potential of square-shaped textured surfaces and advanced biomaterials to optimize the performance and durability of dual mobility total hip prostheses, particularly in accommodating complex joint movements, such as those required in religious practices.</p>

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Lubrication analysis of square-shaped micro-textured dual-mobility total hip prosthesis with varied femoral head materials under bowing movement of muslim prayer: a CFD-FSI study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月3日

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  • Mohammad Tauviqirrahman,
  • Muhammad Imam Ammarullah,
  • Jamari,
  • Muchammad,
  • Gerardus Alvin Kalbuadhi,
  • Ilhan Raznand Allabib,
  • Shofwan Bahar

摘要

The shift from single mobility to dual mobility bearing designs in total hip prostheses is driven by their ability to improve range of motion, enhance articulation stability, reduce impingement risk, and lower the likelihood of wear and osteolysis. The integration of square-shaped micro-textured surfaces on bearing components further enhances biotribological performance. This study investigates the lubrication behavior of square-shaped micro-textured surfaces on the femoral head and inner liner components of dual mobility total hip prostheses, particularly under bowing movements associated with Muslim prayer using two-way fluid–structure interaction (FSI) technique. Various biomaterials for the femoral Head, including stainless steel 316L (SS 316L), cobalt chromium molybdenum (CoCrMo), aluminum oxide (Al2O3), and zirconium dioxide (ZrO2), were compared in terms of hydrodynamic pressure, load support, von Mises stress, and deformation. The study demonstrates a strong correlation (R2 = 0.94) between simulated hydrodynamic pressure and validated literature data, confirming the reliability of the model. Key findings include that Al2O3 on the textured inner liner achieved the highest hydrodynamic pressure, an improvement of approximately 20% over SS 316L, and exhibited one of the lowest von Mises stress values (7.55 MPa), outperforming SS 316L and CoCrMo. The numerical results also indicated that Al2O3 resulted in minimal deformation and the highest load-bearing capacity, demonstrating its exceptional performance. This study emphasizes the potential of square-shaped textured surfaces and advanced biomaterials to optimize the performance and durability of dual mobility total hip prostheses, particularly in accommodating complex joint movements, such as those required in religious practices.