Abstract
Objective
To investigate the influence of lumbar disc degeneration on the efficacy of lumbar fixed-point rotation manipulation in sitting position in treating lumbar intervertebral disc herniation (LIDH).
Methods
We simulated lumbar fixed-point rotation manipulation of sitting position using three finite element models including a normal model, a mild degeneration model and a moderate degeneration model of L3-5, in which the herniated disc was assumed at the left rear of L4 disc and the rotation manipulation was carried out on the right side. The displacement and stress at the left rear of L4 disc of the three models were analyzed.
Results
When lumbar fixed-point rotation manipulation in sitting position was carried out, a displacement and stress were generated at the left rear of L4 intervertebral disc of the three models directing forward. The displacement and stress in degeneration models were less than those in the normal model, and the smallest values were found in the moderate degeneration model. From normal model to mild and then to the moderate degeneration model, the displacement decreased by 36% and 59%, and the stress decreased by 22.3% and 45.2%, respectively.
Conclusion
The lumbar disc degeneration affects adversely the effectiveness of lumbar fixed-point rotation manipulation in sitting position in the treatment of LIDH. The severer the lumbar degeneration, the greater the influence.
摘要
目的
研究腰椎间盘退变对坐位腰椎定点旋转手法治疗腰椎间盘突出症疗效的影响。
方法
应用L3-5正常模型、轻度退变模型与中度退变模型模拟坐位腰椎定点旋转手法, 假定椎间盘突出发生于L4 椎间盘左后方,行右侧手法操作。分析3 个模型中L4 椎间盘左后方的应力与位移。
结果
手法作用下, L4 椎间盘左后方发生向前的应力与位移, 退变模型的应力与位移值小于正常模型, 最小值见于中度退变模型; 自正常模型至轻度与中度退变模型, 位移值分别降低36%和59%, 应力值降低22.3%和45.2%。
结论
腰椎退变影响坐位腰椎定点旋转手法治疗腰椎间盘突出症的疗效, 退变越重影响越大。
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Chen, Jf., Shu, Xn., Tang, Sj. et al. Influence of lumbar disc degeneration on the efficacy of lumbar fixed-point rotation manipulation in sitting position: a finite element study. J. Acupunct. Tuina. Sci. 14, 295–299 (2016). https://doi.org/10.1007/s11726-016-0939-x
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DOI: https://doi.org/10.1007/s11726-016-0939-x
Keywords
- Tuina
- Massage
- Intervertebral Disc Degeneration
- Lumbar Fixed-point Rotation Manipulation in Sitting Position
- Finite Element Analysis