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  1. Article

    Open Access

    TiNbSn stems with gradient changes of Young’s modulus and stiffness reduce stress shielding compared to the standard fit-and-fill stems

    The difference between Young’s moduli of the femur and the stem causes stress shielding (SS). TiNbSn (TNS) stem has a low Young’s modulus and strength with gradient functional properties during the change in e...

    Kazuyoshi Baba, Yu Mori, Daisuke Chiba in European Journal of Medical Research (2023)

  2. Article

    Open Access

    Mid-term results of a new femoral prosthesis using Ti-Nb-Sn alloy with low Young’s modulus

    This study was performed to investigate the mid-term results of Ti-Nb-Sn (TNS) alloy stem with a low Young’s modulus.

    Daisuke Chiba, Norikazu Yamada, Yu Mori, Masamizu Oyama in BMC Musculoskeletal Disorders (2021)

  3. Article

    Open Access

    Limited effects on patient outcomes of conjoint tendon release in anterolateral muscle-sparing total hip arthroplasty

    The anterolateral muscle-sparing total hip arthroplasty (THA) in the supine position is advantageous owing to the very low-dislocation rate and excellent leg length discrepancy control. However, femur exposure...

    Hidetatsu Tanaka, Norikazu Yamada in Journal of Orthopaedic Surgery and Research (2021)

  4. No Access

    Article

    Medium-term result of Elite Plus hip arthroplasty: the second modular evolution of the original Charnley low-friction arthroplasty

    The Elite Plus total hip arthroplasty (THA) system was introduced as the second modular evolution of the original Charnley low-friction arthroplasty. However, the results of the Elite Plus THA are currently co...

    Taichi Irie, Masamizu Oyama, Atsushi Kita in Journal of Orthopaedic Science (2012)

  5. No Access

    Article

    Poor results of the cementless total hip arthroplasty with a nonporous coated acetabular component: AcSys Shearer Cup

    This study followed patients for a minimum of 7 years after primary total hip arthroplasty using cementless acetabular components and evaluated their outcomes.

    Masahide Ikema, Masamizu Oyama, Atsushi Kita in Journal of Orthopaedic Science (2007)