Results: The VAS scores of the electrical continuation group preoperatively, before the first electrical therapy, and at discharge were 70, 40, and 14 mm, respectively, with significant differences between time periods. The VAS scores of the electrical discontinuation group at the three time points were 63, 45, and 41 mm, respectively, with no significant difference between discharge and discontinuation of the initial electrical therapy. On multiple logistic regression analysis with continuity of electrotherapy as the dependent variable, the VAS score at the time of discharge (odds ratio: 1.04) was identified as an important factor.