| Project/Area Number |
10671379
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Orthopaedic surgery
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| Research Institution | Kitasato University |
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Principal Investigator |
KOBAYASHI Akimasa Kitasato University School of Medicine, Associate Professor, 医学部, 講師 (50146453)
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| Project Period (FY) |
1998 – 1999
|
| Project Status |
Completed (Fiscal Year 1999)
|
| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1999: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1998: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Fracture / Bone healing / Mechanics / Non union / 仮骨 |
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| Research Abstract |
To evaluate the effect of the mechanical environment on the fracture healing of bone, we investigated the healing process under the application of loads applied in cyclic compression (0〜5N), cyclic bending (0.02rad) and cyclic torsion(0.02rad).
Under compressive stimulation, the healing ratio increased as rapidly as that under non-stimulation group. The fracture line disappeared completely after 6 weeks. Under cyclic bending, the healing ratio increased over the first 2 weeks, and following this period it decresed. A small amount of callus was evident around the fracture site. Fracture healing was delayed under this condition. Under cyclic torsion, the healing ratio remained at zero throughout 6 weeks. Although the amount of callus produced was greatest, the fracture line was clearly evident after 6 weeks. The fracture did not heal under this condition.
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