近年来颈椎外伤、畸形、结核及颈椎病等呈逐年递增趋势，且明显低龄化，1～6岁儿童颈椎处于发育初期，在解剖、发育、力学、发病部位、临床表现等处与成人有较多不同，随着对儿童医疗诊治技术的不断提高，对其脊柱颈段各相关结构等随年龄发育的形态特征、力学变化的基础数据提出更多、更高的要求，但目前国内外缺乏对其系统化、大样本、数字化的研究。本课题在前期基础上行该年龄全颈椎及椎间盘等相关结构分年龄、侧别、大样本系统的数字化三维形态测量、MSCT和MR三维重建定量、生物力学、有限元分析、骨密度研究等，通过多学科交叉应用研究，探索该年龄段颈椎形态发育特征、力学变化规律、内固定技术标准、年龄界限及骨密度增龄变化，为临床诊疗、设计矫形仪、固定器和预防各类儿童颈椎病等提供理论依据。

In recent years, cervical vertebra injury, deformity, TB, and showed a trend of increasing gradually,and there have been younger patients with cervical spondylosis trend, the infant of 1 ~ 6 years old is at the early stage of development, and cervical vertebra morphological development, mechanical change , and location of pathogeny, clinical presentation as well as diagnoses and treatment ,it have more different with adult. With the constant improvement of infant medical treatment technology, structure of the cervical spine segment each related development along with the age of the morphological characteristics, such as mechanical changes of basic data put forward more and higher requirements.However,there are few systematic fundamental the digital research reports pertaining to the whole cervical vertebra structure. On the basis of previous research，The academic project performs systematic digital three-dimensional morphological measurement,MSCT and MR 3D reconstruction quantitative among different patients of different age groups and gender groups,infinit-element mechanical measurement,analysis of bone density by multi-discipline application and research,to explore the characteristics of infant's cervical vertebra morphological development,biological mechanical change,internal fixation technology and regularity between ange and bone density and provide theoretical evidence for making artificial vertebra,verbra disc,orthopedic apparatus,internal and external fixators,as well as preventing and treating various cervical vertebra diseases.