3 March 2021
Electro dry needling
What is electro dry needling?
(EDN) Application of electrical current through needles, inserted in MTrP or painful areas, in order to stimulate them. For this reason, this technique is different to percutaneous electrical neuroestimulation, percutaneous neuromodulation therapy and electroacupuncture.
How does electro dry needling treatment work?
The treatment will normally be bipolar, with two needles inserted in: convergence on the MTrP, one needle on MTrP (negative electrode) and one needle on the taut band (positive electrode) or one needle on each side the MTrP on the taut band, when we treat MTrP. When the treatment is performed in other tissues, the needle is inserted into the painful area. There is a plenty of parameters of the electric current to choose from. The waveform does not influence the effects of EPS, but it does influence in the patient’s perception, the most used are symmetric biphasic and monophasic. Frequency can determine the analgesia performed. It is recommended for greater stimulation of endogenous opioid neuropeptides to use low frequency for chronic pathologies (muscular zones and motor nerves) and high frequency for acute and subacute pathologies (ligamentous, articular, tendinous zones and sensitive nerves). Pulse width also modulates the physiological effects obtained and stimulates the motor fibers. Intensity should be as high as patient tolerates without causing pain.
What is the duration?
Treatment duration is recommended to be longer than about 30 minutes, as the analgesic effects are better.