生物骨科材料与临床研究2017，Vol.14Issue(3)：1-4,后插1,5.DOI:10.3969/j.issn.1672-5972.2017.03.001
仿生人工寰齿关节的研制与解剖学研究
Design of a bionic artificial atlanto-odontoid joint and its anatomic study
摘要
Abstract
Objective To design a bionic artificial atlanto-odontoid joint,which can keep the motion of the atlantoaxial axis in all directions,and explore the feasibility of its clinical use.Methods 30 cases of normal atlantoaxial CT data were collected and reconstructed with Mimcs15.0 software.The anatomical parameters were measured and statistically analyzed.Design the joint to retain the activities of all directions according to the anatomical data.Joint arthroplasty were performed on 10 fresh cadaver specimens;X-ray and CT were performed to evaluate joint and screws' placement.Results The distance between the midpoint of the atlas lateral mass was (32.53 ± 1.38) mm,the height of the lateral mass was (13.48±1.60) mm,the distance between the medial margin of the vertebral artery hole was (51.12±2.31) mm,the width of the lateral mass was (16.23± 1.01) mm,the distance between the anterior tuberosity and the posterior margin of the odontoid process was (18.48 ± 1.77) mm.The axial height ofodontoid process was (14.82±1.81) mm,the basal diameter was (9.53±0.65) mm,the anteroposterior diameter was (10.91±0.91) mm,The vertebral height was (19.33± 1.77) mm and the vertebral width was (18.19± 1.59) mm.The artificial joint is composed of atlas components,axial components and screws.After operation,the plate and bone are in good condition.The spinal cord is not compressed and the directions of screws were well.The function of flexion,extension and rotation of the atlantoaxial joint can be preserved after joint replacement.Conclusion The anatomical design of the bionic artificial atlanto-odontoid joint is fine;After the joint replacement,the atlantoaxial joint can not only maintain the stability,but also can keep the activities of all directions;This joint has the possibility of clinical replacement.关键词
寰椎齿状突关节/人工关节/解剖学Key words
Atlantoaxial odontoid/Artificial joint/Anatomy分类
医药卫生引用本文复制引用
臧全金,李浩鹏,贺西京,董军,杨平林..仿生人工寰齿关节的研制与解剖学研究[J].生物骨科材料与临床研究,2017,14(3):1-4,后插1,5.基金项目
国家自然科学基金资助项目(编号:81571209),陕西省自然科学基金资助(编号2016JM8054),高等学校博士学科点专项科研基金资助(编号:20120201130009) （编号:81571209）
