Objectives. To report the effects of scrambler therapy in patients diagnosed with failed back surgery syndromes and to analyze the factors affecting pain before and after the therapy. Methods. This study included 26 patients (12 males and 14 females). The Oswestry Disability Index (ODI) and Brief Pain Inventory (BPI) before and after scrambler therapy, Beck Depression Inventory (BDI) score before therapy, and residual pain after therapy were assessed. The changes in the ODI, BPI, and residual pain before and after the therapy were analyzed using the Wilcoxon signed rank test. Spearman correlation analysis and Fisher’s exact test were used to confirm the correlation between BDI and other factors. Multiple regression analysis was used to identify independent factors predicting residual pain, posttherapy ODI, and posttherapy BPI. Results. The ODI changed from 25.69 ± 7.98 to 21.80 ± 9.41 (), and the BPI changed from 68.96 ± 18.00 to 61.62 ± 20.27 after scrambler therapy (). In addition, residual pain changed from 100 to 76.15 (). The BDI was negatively correlated with the duration of scrambler therapy and positively correlated with the initial OPD and BPI. In multiple regression analysis, residual pain was significantly correlated with the BDI (). Conclusion. Scrambler therapy can be used to change the total scores of the ODI and BPI after 5 sessions of treatment. Also, residual pain was significantly related to the BDI. Clinical significance of depression severity on pain should be further investigated via prospective studies.

中文翻译：

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加扰疗法对失败的背部手术综合征患者的影响以及与抑郁症相关的因素在治疗前后的疼痛。

目标。报告加扰治疗对诊断为背部手术综合征失败的患者的影响，并分析治疗前后疼痛的影响因素。方法。该研究包括26例患者（男性12例，女性14例）。评估了加扰器治疗前后的Oswestry残疾指数（ODI）和简短疼痛量表（BPI），治疗前的贝克抑郁量表（BDI）得分以及治疗后的残余疼痛。使用Wilcoxon符号秩和检验分析治疗前后ODI，BPI和残余疼痛的变化。使用Spearman相关分析和Fisher精确检验来确定BDI与其他因素之间的相关性。多元回归分析用于确定预测残留疼痛，治疗后ODI和治疗后BPI的独立因素。结果。ODI从25.69±7.98变为21.80±9.41（），加扰器治疗后的BPI从68.96±18.00变为61.62±20.27（）。此外，残余疼痛从100变为76.15（）。BDI与加扰器治疗的时间呈负相关，与初始OPD和BPI正相关。在多元回归分析中，残余疼痛与BDI显着相关（）。 结论。5次疗程后，可以使用加扰器疗法来更改ODI和BPI的总分。此外，残余疼痛与BDI显着相关。抑郁严重程度对疼痛的临床意义应通过前瞻性研究进一步研究。