| Project/Area Number |
26462239
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Orthopaedic surgery
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| Research Institution | Mie University |
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Principal Investigator |
Kasai Yuichi 三重大学, 医学系研究科, 教授 (20242943)
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| Co-Investigator(Kenkyū-buntansha) |
榊原 紀彦 三重大学, 医学系研究科, 講師 (20582076)
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| Research Collaborator |
HAKOZAKI Takaharu 日本獣医生命科学大学, 大学院生
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Keywords | 生体力学 / 脊椎外科 / 脊椎手術 / 脊椎インプラント / 骨粗鬆症 / 脊椎固定 / pedicle screw system |
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| Outline of Final Research Achievements |
Loosening of screws is one of the big problem in the fixation of spinal pedicle screw system, and therefore, we have developed a tip-expandable screw that anchor effects may be increased. In the present study with beagle dogs, we demonstrated that this new screw had stronger anchor effects for both normal and osteoporotic vertebrae than non-expandable spinal pedicle screws. And then, our research showed that the more expandable screw had the stronger anchor for normal vertebrae, not for osteoporotic vertebrae.
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