Efficacy of low level laser therapy associated with exercises in knee osteoarthritis: a randomized double-blind study
Alfredo PP, Bjordal JM, Dreyer SH, Meneses SR, Zaguetti G, Ovanessian V, Fukuda TY, Junior WS, Lopes Martins RÁ, Casarotto RA, Marques AP
Clinical rehabilitation · 78 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2011-12-14 · Clin Rehabil · vol. 26 · número 6 · págs. 523–533
- Editorial
- SAGE Publishing
- Citado
- 140 citas · más que el 94% de estudios similares · 4.4× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 31 trabajos
- Acceso
- De pago
- Áreas de investigación
- Laser Applications in Dentistry and Medicine · Osteoarthritis Treatment and Mechanisms · Musculoskeletal pain and rehabilitation
- Palabras clave
- low-level laser therapy, knee osteoarthritis, exercise therapy, analgesia, functional capacity, range of motion, muscle strength, quality of life, placebo laser, WOMAC
- MeSH
- humans, osteoarthritis, knee, pain measurement, range of motion, articular, exercise therapy, double-blind method, aged, middle aged, female, male, muscle strength, muscle strength dynamometer, arthrometry, articular, surveys and questionnaires, low-level light therapy
11 autores
- Patrícia Pereira Alfredo🇧🇷Universidade de São Paulo
- Jan Magnus Bjordal🇳🇴Høgskolen i Bergen
- S. Dreyer🇧🇷Universidade de São Paulo
- Sarah Rúbia Ferreira de Meneses🇧🇷Universidade de São Paulo
- Giovana Zaguetti🇧🇷Universidade de São Paulo
- Vanessa Ovanessian🇧🇷Irmandade da Santa Casa de Misericórdia de São Paulo
- Thiago Yukio Fukuda🇧🇷Irmandade da Santa Casa de Misericórdia de São Paulo
- Washington Steagall🇧🇷Universidade de São Paulo
- Rodrigo Álvaro Brandão Lopes‐Martins🇧🇷Universidade de São Paulo
- Raquel Aparecida Casarotto🇧🇷Universidade de São Paulo
- Amélia Pasqual Marques🇧🇷Universidade de São Paulo
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objectives
To estimate the effects of low level laser therapy in combination with a programme of exercises on pain, functionality, range of motion, muscular strength and quality of life in patients with osteoarthritis of the knee.
Design
A randomized double-blind placebo-controlled trial with sequential allocation of patients to different treatment groups.
Setting
Special Rehabilitation Services.
Subjects
Forty participants with knee osteoarthritis, 2-4 osteoarthritis degree, aged between 50 and 75 years and both genders.
Intervention
Participants were randomized into one of two groups: the laser group (low level laser therapy dose of 3 J and exercises) or placebo group (placebo laser and exercises).
Main measures
Pain was assessed using a visual analogue scale (VAS), functionality using the Lequesne questionnaire, range of motion with a universal goniometer, muscular strength using a dynamometer, and activity using the Western Ontario and McMaster Universities Osteoarthritis (WOMAC) questionnaire at three time points: (T1) baseline, (T2) after the end of laser therapy (three weeks) and (T3) the end of the exercises (11 weeks).
Results
When comparing groups, significant differences in the activity were also found (P = 0.03). No other significant differences (P > 0.05) were observed in other variables. In intragroup analysis, participants in the laser group had significant improvement, relative to baseline, on pain (P = 0.001), range of motion (P = 0.01), functionality (P = 0.001) and activity (P < 0.001). No significant improvement was seen in the placebo group.
Conclusion
Our findings suggest that low level laser therapy when associated with exercises is effective in yielding pain relief, function and activity on patients with osteoarthritis of the knees.
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