This is a feasibility study to identify the optimal frequency for stimulation of the spinal cord to achieve maximum reduction in neuropathic back pain as measured by average Numerical rating Scale.~Twenty patients who suffer from back more than leg pain will be recruited into the study once they have satisfactory pain relief from both low and high frequency stimulations. Each patient will then receive stimulation at four different frequencies for 2-3 weeks in a random and blinded order. Their pain scores and function will be assessed using a variety of different tools. The data will then be used to estimate the optimal frequency.
Clinical study to estimate the optimal frequency for stimulation of the spinal cord to achieve relief from back pain.