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Occipital Condyle: morphometric classcification and surgical significance for the lesions of lower clivus
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF NEUROSURGERY
- Issue:
- 4
- DOI:
- 10.3760/j.issn:1001-2346.2007.04.005
- Key Word:
- 枕髁;分类;斜坡;手术
Abstract： 目的 通过对国人颅骨的枕髁和枕大孔进行解剖测量和分析,提出枕髁的形态学分类方法,为枕下外侧入路处理下斜坡和枕大孔腹侧病变的手术中,是否需要磨除枕髁提供解剖学依据.方法 在100例成人颅骨标本和20例成人3D-CT上,测量枕大孔和枕髁的相关解剖数据,观察分析两者的相对位置关系,按枕髁分类指数(OC index)进行分类,并对各类枕髁(组)磨除后部1/3,前、后的手术观察角度进行统计学对比分析.结果 100例成人颅骨标本分为Ⅰ型(小枕髁型8.0%),Ⅱ型(中枕髁型74%),Ⅲ型(大枕髁型18%).Ⅰ型中磨除枕髁后部1/3,前后观察角度无统计学意义(P＞0.05),但在Ⅱ型(P＜0.05)和Ⅲ型中有统计学意义(尸＜0.01).结论 枕髁的形态学变异较大.术前应用3D-CT明确枕髁的形态学类型,对手术中是否需要磨除枕髁具有指导意义.
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