| 脊柱结核椎间植骨、单节段内固定的生物力学测试 |
| |
| 引用本文： | 武启军,王自立,戈朝晖,马小民,刘斌.脊柱结核椎间植骨、单节段内固定的生物力学测试[J].宁夏医学杂志,2010,32(2):131-133. |
| |
| 作者姓名： | 武启军 王自立 戈朝晖 马小民 刘斌 |
| |
| 作者单位： | 1. 宁夏医科大学,宁夏,银川,750004
2. 宁夏医科大学附属医院,银川,宁夏,750004 |
| |
| 摘 要： | 目的测试椎间植骨后脊柱结核单节段短椎弓根螺钉内固定手术模型的生物力学稳定性。方法使用10具小牛脊柱标本（T12-L3）模拟体外L1-2椎间盘周围型脊柱结核前路病变椎体切除手术，即切除L1-2间盘和邻近终板，行自体髂骨植骨、后路用单节段短椎弓根螺钉进行固定。测试模型对照组、植骨组和非植骨组在垂直压缩、侧弯、屈伸和旋转方向上的力学稳定性。结果在垂直压缩、侧弯、前屈和后伸载荷下植骨组的相对运动范围（RROM）明显小于非植骨组（P〈0．05），在扭转载荷下两组相比无明显差异（P〉0．05）；在轴向载荷方向上非植骨组后路内固定棒的应变较植骨组明显增加。结论椎间植骨后可明显增加模型在垂直压缩、侧弯、前屈后伸方向上的稳定性，减少后路内固定棒的载荷分怖，然而在非融合状态下，对于扭转的影响不大。
|
| 关 键 词： | 生物力学 植骨 椎弓根螺钉 内固定 脊柱结核 |
Biomechanical test of interbody bone graft in spinal tuberculosis constructed by monosegment fixation |
| |
| WU Qi-jun,WANG Zi-li,GE Zhao-hui,et al..Biomechanical test of interbody bone graft in spinal tuberculosis constructed by monosegment fixation[J].Ningxia Medical Journal,2010,32(2):131-133. |
| |
| Authors: | WU Qi-jun WANG Zi-li GE Zhao-hui |
| |
| Institution: | Ningxia Medical University/a>;Yinchuan/a>;750004 China |
| |
| Abstract: | Objective To test the biomechanical stiffness of the operation model of spinal tuberculosis constructed by monosegment fixation with short pedicle screw after interbody bone graft.Methods Ten fresh calf spines(T12-L3) were made into the mechanical test models of simulating spinal tuberculosis with being cut off the L1-2 intervertebral discs and the adjacent end plates,iliac graft in situ and posterior monosegment fixation with short pedicle screw.Test the stability of the models of the control group and the... |
| |
| Keywords: | Biomechanics Bone graft Pedicle screw Internal fixation Spinal tuberculosis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
