| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
To elucidate the pathomechanism of traumatic myositis ossificans, I developed a new animal model for analyses. Temporal and spatial transition of the histology of this model, which is difficult to examine in the clinical setting, suggested that myositis ossificans developed as a result of extensive fibrosis of the endomyosium and the perimyosium over myofiber regeneration after muscle damage, and not through direct differentiation of myofibers into the bone. Once myositis ossificans is developed, its maturation matters to consider the timing of return to sport and surgical excision, although there's no clear criterion. Micro-CT findings in this study showed no remarkable change after the mass became well-circumscribed and smoothly surfaced. Thus, such findings on CT may help determine the maturity of myositis ossificans in the clinical setting.
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