2012 Fiscal Year Final Research Report
Three-dimensional analysis of intervertebral range of motion in ossification of the posterior longitudinal ligament of the cervical spine
| Project/Area Number |
22591632
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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 | Osaka University |
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Principal Investigator |
IWASAKI Motoki 大阪大学, 医学系研究科, 准教授 (80252675)
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| Co-Investigator(Kenkyū-buntansha) |
SUGAMOTO Kazuomi 大阪大学, 医学系研究科, 寄附講座教授 (40294061)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 頚椎後縦靱帯骨化症 / 動態解析 / 動的因子 |
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| Research Abstract |
Ossifications, which were obviously of the continuous type, were divided into 2 types: 1) bridging with thick, continuous ossification of the anterior or posterior longitudinal ligament bridging intervertebral segments and with an ROM of 0.3° in AP flexion and 0.2° in rotation; and 2) nonbridging with a minute gap in the ossification itself or between the ossification and vertebra and with an ROM of 4.9° in AP flexion and 4.0° in rotation. These findings indicate that most continuous-type ossifications that are categorized using the conventional radiographic classification system have mobile segments. The discrimination between bridging and nonbridging on CT scans can be a useful predictive index for dynamic factors.
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