Can repetitive transcranial magnetic stimulation reduce neuropathic pain for spinal cord injury patients?
Neuropathic pain is a common and often severe complication after spinal cord injury (SCI), affecting up to 80% of patients and significantly reducing quality of life. Standard medications like gabapentin and pregabalin can help but often have side effects or limited effectiveness. Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive brain stimulation technique that has been studied as an alternative or add-on treatment. Current evidence suggests that rTMS can reduce neuropathic pain in SCI patients, though the effects on anxiety and depression are less clear.
What the research says
A 2025 meta-analysis of 7 randomized controlled trials involving 159 SCI patients found that rTMS significantly improved neuropathic pain compared to sham stimulation, with a large effect size (standardized mean difference = -1.41) 3. This analysis included studies using high-frequency rTMS applied to the primary motor cortex, a common target for pain modulation 311. A separate systematic review from 2023 also identified 12 studies on rTMS for SCI pain and concluded that high-frequency rTMS over the motor cortex is effective, especially for SCI-related neuropathic pain 911. A randomized, double-blind trial compared intermittent theta burst stimulation (iTBS, a form of rTMS) and standard high-frequency rTMS to sham in 33 SCI patients. Both active treatments significantly reduced pain scores on multiple scales, with no significant difference between iTBS and rTMS, suggesting both are effective 10. However, the meta-analysis found that rTMS did not significantly reduce anxiety or depressive symptoms, though there was a trend toward improvement 3. Overall, rTMS appears to be a safe and effective option for reducing neuropathic pain in SCI, but more research is needed to standardize protocols and confirm long-term benefits.
What to ask your doctor
- Could rTMS be a treatment option for my neuropathic pain after spinal cord injury?
- What are the potential benefits and side effects of rTMS compared to my current pain medications?
- How many sessions of rTMS would I need, and where can I receive this treatment?
- Is there a difference between standard rTMS and theta burst stimulation (iTBS) for pain relief?
- Are there any reasons I might not be a good candidate for rTMS, such as metal implants or seizure history?
This question is drawn from common patient questions about Neurology and answered using cited medical research. We do not provide individualized advice.