基于3D形态参数的早期发病脊柱病的生长杆分心的骨科机制分析
Da Lu1, Xueqing Wu1, Yafei Zhao2
1Beijing Key Laboratory for Design and Evaluation Technology of Advanced Implantable & Interventional Medical Devices, School of Biological Science and Medical Engineering, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China.
概括
传统生长棒 (TGR) 改善脊柱对齐,但可能导致重新平衡问题. 将TGR与融合结合起来,通过优化骨科机制,可能有利于严重的早期脊椎病变.
科学领域:
- 整形外科 整形外科 整形外科
- 生物机械工程 生物机械工程
- 脊柱外科手术 脊柱外科手术
背景情况:
- 传统生长棒 (TGR) 用于纠正儿科患者的脊柱形.
- 了解TGR的潜在骨科机制对于优化临床策略至关重要.
- 之前的研究表明,TGR是有效和增长友好的,但需要对其机制进行进一步的分析.
研究的目的:
- 用TGR分析脊柱骨科机制,包括对齐,生长和形态,在使用TGR进行四次分心手术后.
- 为了研究脊柱对齐的变化,生长特征和变形模式.
- 为优化脊柱形纠正临床策略提供见解.
主要方法:
- 在三个平面中分析了脊柱形态曲线,以评估脊柱对齐的变化.
- 测量脊柱生长特征,以评估生长速度和同步.
- 脊椎变形的评估是使用轴向/周边生长比率和cuneate水平.
主要成果:
- 脊柱对齐在TGR后得到改善,但在多次分心后发生了重新平衡.
- 在上部和下部分段之间观察到非同步的脊柱生长,每次分心后的生长率都会下降.
- 不对称的增长是指轴向/周边增长比率的增加,度水平接近正常.
结论:
- 对于脊椎形,TGR是一种增长友好的方法.
- 将TGR与腰部段的骨切割融合结合起来,可能有利于严重的早期脊椎病变.
- 在最终融合之前重塑可以解决平衡损失,长时间的分心频率遵循减少回报的规律.
相关概念视频
01:29Three-Dimensional Analysis of Strain
225
Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...
225
01:11Deformation of Member under Multiple Loadings
170
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
170