2016 Fiscal Year Final Research Report
biomechanical studies of expandable pedicle screw system
| 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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| 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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| Keywords | 生体力学 / 脊椎外科 |
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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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| Free Research Field |
整形外科学
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