Rodríguez-Grande Eliana-Isabel, Osma-Rueda Jose-Luis, Serrano-Villar Yannely, Ramírez Carolina
Universidad del Rosario, Escuela de Medicina y Ciencias de la Salud, GI Ciencias de la Rehabilitación: Bogota, Cundinamarca, Colombia.
Department of Surgery and Orthopedics, School of Medicine, Universidad Industrial de Santander, Colombia.
J Phys Ther Sci. 2017 Sep;29(9):1637-1643. doi: 10.1589/jpts.29.1637. Epub 2017 Sep 15.
[Purpose] The aim was to evaluate the effect of therapeutic ultrasound on the pain, joint mobility, muscle strength, physical function, and quality of life of people with knee OA. [Subjects and Methods] One-site, one-arm, before-after study that included people with Grade II or III tibiofemoral osteoarthritis. Ten therapeutic ultrasound sessions (duty cycle=20%, ERA=10 cm, BNR=6:1, SATP=2.2 W/cm, SATA=0.44 W/cm, frequency=1 MHz, time=4 minutes) were applied. Assessments of primary outcome variables: pain intensity and function, and secondary variables: joint mobility, muscle strength and quality of life, were performed at onset and end of therapy; an additional intermediate evaluation was included for the primary variables. [Results] Means of repeated measurements of pain intensity (pain at rest, pain on palpation and pain after functional activities) and function showed significant differences. There was a significant reduction in pain intensity at the end of functional activities as well as a significant increase in function and in quadriceps muscle strength. [Conclusion] Therapeutic ultrasound applied in accordance with the parameters used, could be recommended during the treatment of individuals with knee osteoarthritis, because it significantly decreased the intensity of pain after the 5th session, and this reduction was maintained until the end of the intervention.
[目的] 本研究旨在评估治疗性超声对膝骨关节炎患者疼痛、关节活动度、肌肉力量、身体功能及生活质量的影响。[对象与方法] 本研究为单中心、单臂、前后对照研究，纳入Ⅱ级或Ⅲ级胫股关节骨关节炎患者。共进行10次治疗性超声治疗（占空比=20%，有效辐射面积=10 cm，波束面积比=6:1，脉冲平均声强=2.2 W/cm，空间平均时间平均声强=0.44 W/cm，频率=1 MHz，时间=4分钟）。在治疗开始时和结束时对主要结局变量（疼痛强度和功能）以及次要变量（关节活动度、肌肉力量和生活质量）进行评估；对主要变量还进行了一次额外的中期评估。[结果] 疼痛强度（静息痛、触压痛和功能活动后疼痛）和功能的重复测量均值显示出显著差异。功能活动结束时疼痛强度显著降低，功能及股四头肌力量显著增加。[结论] 按照所使用的参数应用治疗性超声，可推荐用于膝骨关节炎患者的治疗，因为在第5次治疗后疼痛强度显著降低，且这种降低在干预结束前一直维持。
