中国组织工程研究与临床康复2009，Vol.13Issue(22)：4377-4380,4.DOI:10.3969/j.issn.1673-8225.2009.22.040
不同前路中空加压螺纹钉内固定治疗Ⅱ型齿突骨折的生物力学评价
Biomechanical evaluation of internal fixation of different anterior canulated screws for the treatment of type odontoid fracture
韩国伟 1刘少喻 1赵卫东 2于滨生 1梁春祥 1陈柏龄 1李浩淼 1魏福鑫1
作者信息
- 1. 中山大学附属第一医院黄埔院区脊柱外科,广东省广州市510700
- 2. 南方医科大学生物力学实验室,广东省广州市,510515
- 折叠
摘要
Abstract
BACKGROUND:Antedor canulated screw has been considered an ideal method to treat odontoid fracture.OBJECTIVE:To compare the biomechanical properties of different anterior screws.DESIGN,TIME AND SETTING:A randomized contrast study was performed at the Biomechanics Laboratory of Southern Medical University from March to September 2006.MATERIALS:Double-thread canulated screws and single-thread canulated screws were made of titanium alloy and provided by Shuangyang Medical Apparatus Co.,Ltd.,Suzhou.METHODS:A total of head-neck complexes (C0-C3) which were collected from 20 corpses were maintained in formaldehyde for less than 3 months;thereafter,the muscles and ligaments were removed to obtain the axis specimens so as to make type Ⅱ odontoid fracture models.The fracture samples were individually treated with double-thread and single-thread canulated screws,with 10 samples for each group.MAIN OUTCOME MEASURES:The shear stiffness and the maximum resistance of the two kinds of screw were tested in this study.RESULTS:The shear stiffness of the double-thread screw group was significantly higher than the single-thread screw group (P＜0.01 );however,there was no significant different in the maximum resistance between the two groups (P＞0.05).CONCLUSION:Double-thread canulated screws have a strong biomechanical stability for treating odontoid fracture;therefore,the first choice of the internal fixation should be double-thread canuiated screws for patients with osteoporosis or those who are susceptible to expanded screw pathway during surgical procedures.关键词
枢椎齿突骨折/内同定/生物力学分类
医药卫生引用本文复制引用
韩国伟,刘少喻,赵卫东,于滨生,梁春祥,陈柏龄,李浩淼,魏福鑫..不同前路中空加压螺纹钉内固定治疗Ⅱ型齿突骨折的生物力学评价[J].中国组织工程研究与临床康复,2009,13(22):4377-4380,4.
