摘要
目的：通过测量髁突颈后缘锚固钉植入位置骨皮质的厚度，为建立2种医用锚固钉植入髁突颈后缘拔出力的有限元模型分析提供数据参考。方法：在本院拍摄CT的成年患者中，随机选取116例，共232侧髁突．利用CT采集颌面部数据并测量髁突颈后缘骨皮质厚度。采用SPSS17．0软件包进行统计学分析。结果：232侧髁突颈后缘骨皮质厚度均值为2．05mm，男性骨皮质厚度均值为2．04mm，女性骨皮质厚度均值为2．05mm，两者之间无统计学差异：20～34岁髁突颈后缘骨皮质厚度均值为2．05mm．35．49岁均值为2．06mm,≥50岁均值为2．03mm。经统计学分析．只有20-34岁和35-49岁2组比较无显著差异（P〉0．05），其他2组之间均具有显著差异（P〈0．05）。结论：本实验为建立2种医用锚固钉植入髁突后缘拔出力分析的有限元模型奠定了基础．骨皮质厚度与锚固钉的稳定性有着重要关系。
PURPOSE： To measure the thickness of cortical bone on the posterior margin of mandibular condyle neck where nails were anchored, and provide reference for pullout force finite element analysis of 2 types of nails anchored on the posterior margin of condyle neck. METHODS： One hundred and sixteen adult patients （total 232 sides of condyle） who had CT examination at our hospital were randomly selected. Maxillofacial data were collected through CT and the thickness of the posterior margin of condyle neck was measured and analyzed using SPSS17.0 software package. RESULTS： The mean cortical bone thickness on 232 sides of posterior margin of condyle neck was 2.05 mm, with an average thickness of 2.04 mm for men and 2.05 mm for women. No significant difference was documented between different genders. The mean thickness of cortical bone for the age group of 20-34 years were 2.05 ram, 2.06 mm for 35-49 years, and 2.03 mm for patients over 50 years, respectively. There were significant differences except group of 20-34 years and group of 35-49 years （P〉0.05）. CONCLUSIONS： This study can provide a reference for pullout force of finite element model of two implanted anchor nails. The cortical bone thickness has an important impact on the anchorage stability.
出处
《中国口腔颌面外科杂志》
CAS
2016年第6期518-521,共4页
China Journal of Oral and Maxillofacial Surgery
基金
国家自然科学基金(81371168)
上海交通大学医工交叉项目(YG2013MS63)
上海交通大学医学院转化医学创新基金(15ZH2007)
上海市教育委员会高峰-高原学科-上海交通大学医学院"研究型医师"(20152226)
关键词
颞下颌关节盘锚固术
髁突颈后缘
骨皮质厚度
CT
Temporomandibular joint disc anchorage
Posterior condylar neck flange
Cortical bone thickness
CT
