ABSTRACT Despite the high incidence of patellofemoral pain syndrome (PFPS), few studies show the effects of radiofrequency on pain and functionality in these patients. For this reason, the aim of this study was to determine the efficacy of monopolar dielectric diathermy by emission of radiofrequency (MDR) in dynamic applications aimed at treating pain and improving function in patients with PFPS. For this purpose, a single-blind randomized clinical trial was conducted. Eighty-four participants with PFPS were evenly divided into an experimental group (EG) and a control group (CG). All subjects receive 10 min of daily home exercises along 3 weeks, and in addition, the subjects of the EG received 10 sessions based on the dynamic application of MDR. Variables measured included Visual Analogue Scale (VAS), DN4 questionnaire, Lower Extremity Functionality Scale (LEFS), Kujala scale, Range of Movement (ROM) in knee flexion and extension and drug intake. The EG showed a statistically significant reduction in pain (VAS = 4.8 [5.5–4.1] [p < .001]; DN4 = 3.8 [4.4–3.2] [p < .001]), and an increase in functionality (LEFS = 16 [19–13] [p < .001]; Kujala = 19 [23–14] [p < .001]) and in ROM (flexion 18º [21º-16º] [p < .001]). No statistically significant changes in drug intake were found. Based on this data, the dynamic application of MDR seems effective in reducing pain and increasing functionality and flexion in patients with PFPS. Diathermy by emission of radiofrequency could be recommended as complement or main therapy in the treatment of PFPS.

中文翻译：

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通过发射射频治疗髌股关节疼痛的单极电介质透热疗法。一项单盲随机临床试验

摘要 尽管髌股疼痛综合征 (PFP​​S) 的发病率很高，但很少有研究表明射频对这些患者的疼痛和功能的影响。因此，本研究的目的是通过发射射频 (MDR) 来确定单极电介质透热疗法在旨在治疗 PFPS 患者疼痛和改善功能的动态应用中的功效。为此，进行了单盲随机临床试验。84 名患有 PFPS 的参与者被平均分为实验组 (EG) 和对照组 (CG)。所有受试者在 3 周内每天接受 10 分钟的家庭锻炼，此外，EG 的受试者接受了 10 次基于 MDR 动态应用的训练。测量的变量包括视觉模拟量表 (VAS)、DN4 问卷、下肢功能量表 (LEFS)、Kujala 量表、膝关节屈伸和药物摄入量的运动范围 (ROM)。EG 显示疼痛在统计学上显着减少（VAS = 4.8 [5.5–4.1] [p < .001]；DN4 = 3.8 [4.4–3.2] [p < .001]），功能增加（LEFS = 16 [19–13] [p < .001]；Kujala = 19 [23–14] [p < .001]）和 ROM（屈曲 18º [21º-16º] [p < .001]）。未发现药物摄入量有统计学意义的变化。基于这些数据，动态应用 MDR 似乎可以有效减轻 PFPS 患者的疼痛并增加功能和屈曲度。可推荐射频电疗作为 PFPS 治疗的补充或主要疗法。EG 显示疼痛有统计学意义的减轻（VAS = 4.8 [5.5-4.1] [p < .001]；DN4 = 3.8 [4.4-3.2] [p < .001]），并且功能增加（LEFS = 16 [19–13] [p < .001]；Kujala = 19 [23–14] [p < .001]）和 ROM（屈曲 18º [21º-16º] [p < .001]）。未发现药物摄入量有统计学意义的变化。基于这些数据，动态应用 MDR 似乎可以有效减轻 PFPS 患者的疼痛并增加功能和屈曲度。可推荐射频电疗作为 PFPS 治疗的补充或主要疗法。EG 显示疼痛在统计学上显着减少（VAS = 4.8 [5.5–4.1] [p < .001]；DN4 = 3.8 [4.4–3.2] [p < .001]），功能增加（LEFS = 16 [19–13] [p < .001]；Kujala = 19 [23–14] [p < .001]）和 ROM（屈曲 18º [21º-16º] [p < .001]）。未发现药物摄入量有统计学意义的变化。基于这些数据，动态应用 MDR 似乎可以有效减轻 PFPS 患者的疼痛并增加功能和屈曲度。可推荐射频电疗作为 PFPS 治疗的补充或主要疗法。001]) 和 ROM（屈曲 18º [21º-16º] [p < .001]）。未发现药物摄入量有统计学意义的变化。基于这些数据，动态应用 MDR 似乎可以有效减轻 PFPS 患者的疼痛并增加功能和屈曲度。可推荐射频电疗作为 PFPS 治疗的补充或主要疗法。001]) 和 ROM（屈曲 18º [21º-16º] [p < .001]）。未发现药物摄入量有统计学意义的变化。基于这些数据，动态应用 MDR 似乎可以有效减轻 PFPS 患者的疼痛并增加功能和屈曲度。可推荐射频电疗作为 PFPS 治疗的补充或主要疗法。