The effect of low-level laser in knee osteoarthritis: a double-blind, randomized, placebo-controlled trial
Hegedus B, Viharos L, Gervain M, Gálfi M
Photomedicine and laser surgery · 124 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
- 2009-06-16 · Photomed Laser Surg · vol. 27 · número 4 · págs. 577–584
- Editorial
- Mary Ann Liebert, Inc.
- Citado
- 199 citas · más que el 97% de estudios similares · 6.6× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 13 trabajos
- Acceso
- Acceso abierto (copia en repositorio)
- Áreas de investigación
- Laser Applications in Dentistry and Medicine · Osteoarthritis Treatment and Mechanisms · Infrared Thermography in Medicine
- Palabras clave
- low-level laser therapy, knee osteoarthritis, analgesia, microcirculation, infrared thermography, diode laser, joint flexion, joint swelling, pressure sensitivity
- MeSH
- microcirculation, humans, osteoarthritis, knee, thermography, pain measurement, double-blind method, adult, aged, middle aged, female, male, low-level light therapy
4 autores
- Béla Hegedüs · autor de correspondencia
- László Viharos🇭🇺University of Szeged
- Mihály Gervain🇭🇺Orosháza Városi Önkormányzat Kórháza
- Márta Gálfi🇭🇺University of Szeged
Resumen
El texto original del estudio, en el idioma en que se publicó.
Introduction
Low-level laser therapy (LLLT) is thought to have an analgesic effect as well as a biomodulatory effect on microcirculation. This study was designed to examine the pain-relieving effect of LLLT and possible microcirculatory changes measured by thermography in patients with knee osteoarthritis (KOA).
Materials and methods
Patients with mild or moderate KOA were randomized to receive either LLLT or placebo LLLT. Treatments were delivered twice a week over a period of 4 wk with a diode laser (wavelength 830 nm, continuous wave, power 50 mW) in skin contact at a dose of 6 J/point. The placebo control group was treated with an ineffective probe (power 0.5 mW) of the same appearance. Before examinations and immediately, 2 wk, and 2 mo after completing the therapy, thermography was performed (bilateral comparative thermograph by AGA infrared camera); joint flexion, circumference, and pressure sensitivity were measured; and the visual analogue scale was recorded.
Results
In the group treated with active LLLT, a significant improvement was found in pain (before treatment [BT]: 5.75; 2 mo after treatment : 1.18); circumference (BT: 40.45; AT: 39.86); pressure sensitivity (BT: 2.33; AT: 0.77); and flexion (BT: 105.83; AT: 122.94). In the placebo group, changes in joint flexion and pain were not significant. Thermographic measurements showed at least a 0.5 degrees C increase in temperature--and thus an improvement in circulation compared to the initial values. In the placebo group, these changes did not occur.
Conclusion
Our results show that LLLT reduces pain in KOA and improves microcirculation in the irradiated area.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial.
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