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Guoan Li
2022 Volume Annual60 Issue Abstract Pages
64_1
Published: 2022
Released on J-STAGE: December 01, 2022
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The development of adjacent segment degeneration (ASD) is a major concern after lumbar spinal fusion surgery, but the causative mechanisms remain unclear. This paper discusses our research using a combined in vivo and in silico method that investigates the changes of biomechanical responses of the adjacent segments after lumbar fusion of patients under weight-bearing standing conditions. The in vivo adjacent disc height changes before and after fusion were measured using a dual fluoroscopic imaging system (DFIS), and the measured in vivo intervertebral positions and orientations were used as boundary conditions of the patient-specific three-dimensional (3D) finite element (FE) models to simulate intrinsic biomechanical responses of adjacent discs to fusion of the diseased segments. Our data demonstrated that fusion could cause alterations in adjacent disc biomechanics, and the combined in vivo and in silico method could be a valuable tool for investigating causative factors of ASD after lumbar fusion surgery.
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
65_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
66_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
67_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
68_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
68_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
69_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
69_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
70_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
70_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
71_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
71_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
72_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
72_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
73_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
73_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
74_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
75_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
75_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
76_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
76_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
77_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
78_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
78_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
79_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
79_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
80_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
80_2
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
81_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
82_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
82_2
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
83_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
83_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
84_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
84_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
85_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
85_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
86_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
86_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese]
2022 Volume Annual60 Issue Abstract Pages
87_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
88_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
88_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
2022 Volume Annual60 Issue Abstract Pages
89_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
89_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
90_1
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
90_2
Published: 2022
Released on J-STAGE: December 01, 2022
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[in Japanese], Nursetia Darma Panji, [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
91_1
Published: 2022
Released on J-STAGE: December 01, 2022
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Abdullah Norain, Daisuke Miyazaki, Ei Yamamoto, Kosuke Ueki, Masaaki N ...
2022 Volume Annual60 Issue Abstract Pages
91_2
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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Nowadays, titanium alloys are being used as orthopedic implant devices due to their low elastic moduli which can suppress stress shielding phenomenon during long-term implantation. In the present study, the effects of elastic modulus differences between titanium alloys and bone on bone formation during early stage of healing were investigated. Ti-6Al-4V ELI (Ti-64:110 GPa) and Ti-29Nb-13Ta-4.6Zr (TNTZ:60 GPa) were used as materials for implant plates, and then were fixed on rabbit窶冱 femur after artificial half-circular defect was made. After 3 weeks, the rabbits were euthanized, and cross-sections of the femurs were evaluated by scanning electron microscopy, hematoxylin-eosin (HE), and Vickers hardness test. This study found that both implant plates resulted in similar amounts of new bone formation, but more mature bone was formed when using the TNTZ implant plate. Further, smaller but harder callus was formed when using the TNTZ implant plate, compared to using the Ti-64 implant plate.
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[in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
92_1
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]
2022 Volume Annual60 Issue Abstract Pages
92_2
Published: 2022
Released on J-STAGE: December 01, 2022
JOURNAL
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