Combined Effect of Laser Acupuncture and Electroacupuncture in Knee Osteoarthritis Patients

"The LA is using a gallium aluminum arsenide LaserPen (maximal power, 150 mW; wavelength, 810nm; area of probe, 0.03cm2; power density, 5W/cm2; pulsed wave; RJ-Laser, Reimers \& Janssen GmbH, Waldkirch, Germany). The LA treatment will be applied to EX-LE5, ST35, and BL40 for 80 seconds, under power 150mW, to deliver a total treatment dose of 6 Joule/ cm2.~The EA is the combination of acupuncture and transcutaneous electrical nerve stimulator. The transcutaneous electrical nerve stimulator is produced by Ching Ming Medical Device Company. This machine is verified by Department of Health in Taiwan, with the ID number 001147. We perform acupuncture on GB33, GB34, SP9, SP10, and ST36."

Sham LA is using the same appearance of LaserPen without energy output to perform the same acupoint as above description. Both of the LaserPen in two groups are labeled with A and B, one of them is revised by the company to become the sham LA. The outward of both LaserPen are the same and our physician does not know which one is the real.