Factors that affect the anterior operative effect of cervical spondylotic myelopathy are disease course, JOA score before operation and age.

前路手术疗效的影响因素依次为：病程、术前joa评分、年龄。

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Factors that affect the posterior operative effect of cervical spondylotic myelopathy are JOA score before operation, age and disease course.

后路手术疗效的影响因素依次为：术前JOA评分、年龄、病程。

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Posterior lumbar interbody fusion is effective in increasing the improvement rates of lower back pain JOA score and maintaining the disc height and the superior intervertebral space angle.

治疗腰椎间盘突出症复发，在提高下腰痛评分、维持椎间高度和上一椎间隙角度方面，后路椎间融合术优于其它两手术方式。

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