| Project/Area Number |
25870499
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Orthopaedic surgery
Biomedical engineering/Biomaterial science and engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 3次元動態解析 / 股関節 / 臼蓋形成不全症 / 寛骨臼移動術 / 大腿骨寛骨臼インピンジメント / 変形性股関節症 / 人工股関節置換術 / 動態解析 |
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| Outline of Final Research Achievements |
Kinematics during weight-bearing activities, including gait, chair-rising, squatting, twisting, and golf swing, were analyzed using image-matching techniques for healthy, osteoarthritic, and replaced hips. This study revealed activity dependent kinematics of healthy hips with coordinated pelvic and femoral movements. Osteoarthritic hips showed limited ranges of coordinated motion of the pelvis and femur during each activity, especially in deeply flexed and rotated postures. Correction of acetabular coverage through periacetabular osteotomy did not directly decrease hip range of motion while squatting. In vivo 3D visualization of the clearance between the femoral head-neck junction and the acetabulum could assist surgeons in adequately identifying the location of impingement and confirming sufficient resection post-operatively. Although liner-to-neck contact during golf swing was observed in 27% of replaced hips, dynamic stability without excessive hip rotation was observed in all hips.
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