Electrical Dry Needling Versus Iontophoresis in Treating Chronic Unilateral Knee Osteoarthritis

including transcutaneous electrical nerve stimulation (TENS) and an exercise therapy program (stretching exercises, both hip and knee strengthening, balance, and stability exercise)

In electrical dry needling, needle electrodes are used to deliver an electric current to the taut muscle band or the pain-generating trigger point. Low-frequency currents are thought to improve the physiological effects of the therapy by using electrical stimulation to enhance certain physiological reactions and achieve a speedier analgesic and anesthetic effect than that obtained with standard dry needling.

Galvanic current mode will be used to deliver the cream through the skin. One gram of GS will be placed on positive electrode (being positively charged using Trans-arthral electrode placement technique) for administration of Iontophoresis \[40mA-min (2mA x 20minutes)\].