Evaluating the Effect of Spinal Cord Stimulation Frequency on Fast-Acting Sub-perception Therapy (FAST) for Chronic Pain

"Patients will undergo spinal cord implant procedures as per standard of care and be implanted with the WaveWriter™ Alpha Spinal Cord Stimulator (SCS) system.~Implant Procedures will be followed by a healing period (4-6 weeks) during which patients will be offered therapy (up to one 1Khz). Patients will then be randomised to receive therapy at four different rates (A, B, C, D) in no particular order for 3-6 weeks each. Patients will then be followed up at 3 and 6 months after the last randomization visit."

Acute opioid pain medications may be continued. No additional scheduled assessments will be completed during this period.

Patients will then be randomised to receive therapy (up to 1KHz) at four different rates in no particular order for 3-6 weeks each. Patients will then be followed up at 3 and 6 months after the last randomization visit.