倒悬牵引治疗腰椎间盘突出症疗效的正交设计临床研究

Efficacy of overhung traction in treatment of lumbar disc herniation: an orthogonal,clinical study

目的:研究倒悬牵引治疗腰椎间盘突出症的最佳方案。方法:设计三因素两水平的正交表L8(27),将160例腰椎间盘突出症患者按区组随机方法分为8组,各20例,按照正交设计表所列方案进行治疗,分别记录治疗前、治疗14d后JOA量表及McGill疼痛-询问量表评分结果,并进行统计学处理。结果:从JOA量表及McGill疼痛-询问量表评分结果可以看出,牵引角度、牵引时间、牵引频率是影响患者疗效的显著性因素。在治疗14d后,牵引角度90°优于45°、牵引时间20min优于10min、每天1次优于隔天1次。结论:在治疗14d内,倒悬牵引疗法最佳组合方案为倒悬下90°牵引、20min牵引时间、每天牵引1次。

Objective： To study the optimal scheme of overhung traction for treating lumbar disc herniation （LDH）. Methods ： The L8 （ 27 ） orthogonal array L8 （ 27 ） for 3 factors at 2 levels was designed. A total of 160 patients with LDH were randomly and equally divided into 8 groups to receive treatments according to the orthogonal array. Before and after 14 d of treatment,the scores on Japanese Orthopaedic Association（JOA）Scale and McGill Pain Questionnaire（MPQ） were recorded and statistically analyzed. Results： The JOA and MPQ scoring results indicated that the angle, time, and frequency of traction were significant influencing factors for the treatment outcome. After 14 d of treatment, the outcome was better at a traction angle of 90° than at 45°, for a traction time of 20 min than for 10 rain,and once daily than once every other day. Conclusion： In the optimal scheme of 14 -d treatment, overhung traction was performed at 90° once daily（20 rain each time）.