| 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 patientswith 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= |