在C2中多个固定点的可行性
Quyen Nguyen Ngoc1, K Daniel Riew2,3, So Min Lee4
1Spine Surgery Unit, Polyclinic and Premier Healthcare Center, 108 Military Central Hospital, Hanoi, Socialist Republic of Vietnam.
Asian spine journal
|July 14, 2023
概括
这项研究表明,C2脊椎可以安全地容纳多个螺杆放置. 大多数患者可以有四个螺丝,有些人可以容纳三个,确保安全的脊柱固定.
科学领域:
- 神经外科 神经外科
- 整形外科手术 整形外科手术
- 脊椎解剖学 脊椎解剖学
背景情况:
- 在特定的脊柱病例中,安全的C2固定至关重要.
- 以前的研究还没有分析C2脊椎多重螺丝固定的可行性.
研究的目的:
- 评估在C2脊椎中实现三或四个螺丝固定点的可行性.
- 评估用于C2固定的结合脚和层的实用性.
主要方法:
- 利用了100名患者的3D模拟软件和CT扫描图像.
- 分析了将脚和层状螺丝放在同一C2侧的解剖学可行性.
- 测量了螺丝入口点之间的3D距离,以确保足够的间距.
主要成果:
- 在85%的案例中,四个螺丝是可行的 (双边脚和层状螺丝).
- 在11%的案例中,三个螺丝是可行的 (单侧双螺丝).
- 进入点之间的距离超过16.1毫米,防止螺丝头碰撞.
结论:
- 在96%的分析病例中,C2脊椎可以容纳三或四个螺丝.
- 这种多螺丝固定策略增强了C2的稳定性.
相关概念视频
01:16Statically Indeterminate Problem Solving
455
Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
455
01:03Fixation and Sectioning
4.5K
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
4.5K