Percutaneous Neuromodulation Therapy (PNT) With Chronic Low Back Pain Patients

"* Ten PNT sessions in eleven weeks~* On average, one PNT session per week~* Ten lumbar Safeguide electrodes (three centimeters in length) deployed per lumbar montage~* Forty-five minutes of electrical stimulation for each session~* Electrical stimulation parameters:~ * Continuous 50 Hz current~ * Charge-balanced, biphasic (each phase is 200 microsec), rectangular waveform~ * Intensity to subject's tolerance for ten minutes then increased to a mildly uncomfortable level"

"* Ten TENS sessions in eleven weeks~* On average, one TENS session per week~* Four 2-inch (5.1 centimeters) diameter pads applied per TENS lumbar montage~* Forty-five minutes of electrical stimulation for each session~* Electrical stimulation parameters:~ * Current at 2 Hz-low frequency~ * Pulse trains delivered as asymmetric, biphasic, square waveform current, with pulse width lasting 20 microsec~ * Intensity titrated according to subject's sensory threshold~ * To maintain blinding, the treating physician or clinician will check on the subject after 10 minutes and dial the channels down just prior to the point of turning off the device."