Assessment of the effectiveness of low-level laser therapy on the hands of patients with rheumatoid arthritis: a randomized double-blind controlled trial

Assessment of the effectiveness of low-level laser therapy on the hands of patients with rheumatoid arthritis: a randomized double-blind controlled trial

Author Meireles, Sandra Mara Autor UNIFESP Google Scholar
Jones, Anamaria Autor UNIFESP Google Scholar
Jennings, Fabio Autor UNIFESP Google Scholar
Suda, Alina Lica Autor UNIFESP Google Scholar
Parizotto, Nivaldo Antnio Google Scholar
Natour, Jamil Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de São Carlos (UFSCar)
Abstract Assess the effectiveness of low-level laser therapy on pain reduction and improvement in function in the hands of patients with rheumatoid arthritis. A randomized double-blind controlled trial was carried out on 82 patients with rheumatoid arthritis. the experimental group was submitted to the application of laser therapy, whereas the control group received a placebo laser. Aluminum gallium arsenide laser was used, at a wavelength of 785 nm, dose of 3 J/cm(2) and mean power of 70 mW. the groups were homogenous at the beginning of the study with regard to the main variables (p > 0.05). There were no statistically significant differences between groups in most of the measurements taken at the end of the intervention including the primary variables; the following variables were the exceptions: favoring the experimental group-inflammation of the interphalangeal joint of the right thumb (p = 0.012) and perimetry of the interphalangeal joint of the left thumb (p = 0.013); and favoring the control group-flexion of the proximal interphalangeal joint of the right fifth finger (p = 0.021), perimetry of the third proximal interphalangeal joint of the right hand (p = 0.044), grip strength in the left hand (p = 0.010), and the work domain of the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire (p = 0.010). We conclude that low-level aluminum gallium arsenide laser therapy is not effective at the wavelength, dosage, and power studied for the treatment of hands among patients with rheumatoid arthritis.
Keywords Hand
Low-level laser
Physiotherapy
Rehabilitation
Rheumatoid arthritis
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Date 2010-05-01
Published in Clinical Rheumatology. New York: Springer, v. 29, n. 5, p. 501-509, 2010.
ISSN 0770-3198 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 501-509
Origin http://dx.doi.org/10.1007/s10067-009-1347-0
Access rights Closed access
Type Article
Web of Science ID WOS:000275892800008
URI http://repositorio.unifesp.br/handle/11600/32503

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