Estudio piloto del dolor lumbar tratado con corrientes interferenciales

Effect of interferential current therapy on pain perception and disability level in subjects with chronic low back pain: a randomized controlled trial

“…The randomization ratio was used based on previous research, 15,16 and the hypothesis. 14 Ethical issues may help to explain the lack of sham treatment for patients with chronic pain, as in previous trials. 3,32,34,35 However, it has been observed that electrotherapy may entail a major placebo component.…”

“…The Granmo software, version 7.12 (Hospital del Mar Medical Research Institute, Barcelona, Spain), was used to estimate the sample size. Taking into account a preliminary study, 14 for a two-sided contrast, an α value of 0.05 and a beta risk of 0.01 were accepted. In order to observe a between-group difference after intervention of at least 17.5% in lower spine functionality, 18 subjects per group were needed.…”

“…The aim of the trial was to assess the short-term efficacy of a two-week transregional interferential current protocol on pain perception and disability, when compared with usual care in chronic non-specific low back pain. Based on a pilot study, 14 it was hypothesized that significant differences were expected to be found in favour of patients under electrotherapy treatment.…”

Effectiveness of classic physical therapy proposals for chronic non-specific low back pain: a literature review

“…Although there is no evidence of medium and long-term benefits, it is a well-known fact that drugs cause undesirable effects on the organism 7,8) . Other therapies such as thermotherapy and electrotherapy with transcutaneous electrical nerve stimulation or interferential stream have proved to be ineffective as well [9][10][11] .…”

Electroestimulación y ejercicios de Williams en el tratamiento de la hernia de disco lumbar

“…8, 9 En una muestra de 22 sujetos con dolor lumbar incapacitante con edades de 51± 9,11 años en quienes se aplicaron dos sesiones de tratamiento con corriente interferencial, método tetrapolar, mediante electrodos de 75 cm2 de superficie, en un lapso de 25 minutos, mostro una mejora en el alivio del dolor evaluado mediante la Escala Visual Análoga (EVA) (p=0,017). 10 Por otra parte, en un grupo aleatorizado, la terapia de bloqueo de la raíz nerviosa en pacientes con hernia de disco y tratamiento fisiátrico mostraron descenso de dolor en comparación con sujetos sin intervención fisioterapéutica, ambos con un seguimiento de seis meses continuos evaluados con Cuestionario de discapacidad por dolor de espalda y escala de dolor. 11 Aunado a lo anterior, diversos fármacos aplicados en forma de inyección epidural se han empleado para alivio de dolor en los padecimientos crónicos de columna vertebral, 12 como la discolisis percutánea con ozono.…”