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Lasers in Medical Science

, Volume 29, Issue 5, pp 1695–1700 | Cite as

The effect of low-level laser therapy on knee osteoarthritis: prospective, descriptive study

  • Hassan SoleimanpourEmail author
  • Khosro Gahramani
  • Reza Taheri
  • Samad E. J. Golzari
  • Saeid Safari
  • Robab Mehdizadeh Esfanjani
  • Afshin Iranpour
Original Article

Abstract

Background

Osteoarthritis (OA) is one of the most common joint disorders in the elderly which could be associated with considerable physical disability.

Patients and methods

In a descriptive, prospective study, 33 patients enrolled in the study from which 15 people were excluded due to incomplete course of treatment, leaving the total number of 18 patients with knee osteoarthritis. Gal-Al-As diode laser device was used as a source of low-power laser. Patients were performed laser therapy with a probe of LO7 with a wavelength of 810 nm and 50 mW output power in pulse radiation mode (F = 3,000, peak power = 80 W, Δt = 200 ns, density = 0.05 W/cm2, dose = 6 J/cm2, area = 1 cm2) and also a probe of MLO1K with a power output of 30 mW and a wavelength of 890 nm in pulse radiation mode (F = 3,000 Hz, peak power = 50 W, Δt = 200 ns, density = 0.017 W/cm2, total dose = 10 J/cm2), and were given low-level laser therapy (LLLT) three times a week with a total number of 12 sessions. Data were analyzed using SPSS ver. 15, and the obtained data were reported as mean ± SD and frequency (%). To analyze the data, repeated measurement and marginal homogeneity approaches were used.

Results

In the current study, a significant reduction was observed regarding the nocturnal pain, pain on walking and ascending the steps, knee circumference, distance between the hip and heel, and knee to horizontal hip to heel distance at the end of the treatment course.

Conclusions

In brief, the current study focuses on the fact that LLLT is effective in reducing pain in knee osteoarthritis.

Keywords

Knee osteoarthritis Low-level laser therapy Pain 

Abbreviations

LLLT

Low-level laser therapy

TENS

Transcutaneous electrical nerve stimulation

OA

Osteoarthritis

WOMAC

Western Ontario and McMaster Universities

Notes

Acknowledgments

We would like to offer our special thanks to the Iranian Laser Association for assisting us throughout the current study.

Financial disclosure

The authors declare they have no financial disclosure.

Funding/Support

This article is not supported by any funding organization. There is no sponsor for this work.

Supplementary material

10103_2014_1576_MOESM1_ESM.docx (26 kb)
Supplementary Material (DOCX 25 kb)

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Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  • Hassan Soleimanpour
    • 1
    Email author
  • Khosro Gahramani
    • 2
  • Reza Taheri
    • 2
  • Samad E. J. Golzari
    • 3
  • Saeid Safari
    • 4
  • Robab Mehdizadeh Esfanjani
    • 5
  • Afshin Iranpour
    • 6
  1. 1.Cardiovascular Research CenterTabriz University of Medical SciencesTabrizIran
  2. 2.Iranian Medical Laser AssociationTehranIran
  3. 3.Liver and Gastrointestinal Disease Research CenterTabriz University of Medical SciencesTabrizIran
  4. 4.Anesthesiology and Critical Care DepartmentIran University of Medical SciencesTehranIran
  5. 5.Neurosciences Research CenterTabriz University of Medical SciencesTabrizIran
  6. 6.Saudi German HospitalDubaiUnited Arab Emirates

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