Spinal Cord Stimulation for Persistent Spinal Pain Syndrome After Lumbar Surgery
DOI:
https://doi.org/10.5281/zenodo.22310519Keywords:
Spinal cord stimulation, Persistent spinal pain syndrome, Failed back surgery syndrome, Neuromodulation, Lumbar spine surgeryAbstract

Background: Persistent spinal pain syndrome type 2 (PSPS-T2), the modern term for failed back surgery syndrome, affects a
substantial minority of patients after lumbar spine surgery. Objective: To synthesise randomised trials, waveform comparisons, durability data, patient selection practice and cost-effectiveness evidence for spinal cord stimulation (SCS) in PSPS-T2.
Methods: Narrative review of randomised controlled trials, long-term cohort follow-ups, consensus guidelines and
health-economic analyses. Findings: Randomised trials show SCS outperforms reoperation and conventional medical management for leg-predominant pain, with benefit sustained to 24 months. High-frequency and burst waveforms match or exceed conventional tonic stimulation, though a placebo-controlled burst trial found no advantage over sham for axial pain. Complications centre on lead migration and infection, and cost-effectiveness improves once device costs are amortised beyond two to three years.
Conclusions: SCS is well supported for refractory leg pain after lumbar surgery, but axial pain, patient selection and
trial-stimulation methodology need further high-quality evidence.
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