DLPFC-targeted rTMS reduces phantom limb pain and improves psychological comorbidities in traumatic amputees
In a pilot randomized controlled trial, 27 traumatic amputees with phantom limb pain received either real or sham rTMS applied to the dorsolateral prefrontal cortex (DLPFC) for 10 sessions over 2 weeks. Real rTMS was associated with improvements in pain intensity, anxiety, depression, and quality of life compared to sham, suggesting potential as an adjunctive therapy.
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DLPFC-targeted rTMS reduces phantom limb pain and improves psychological comorbidities in traumatic amputees The current body of evidence comprises 1 study, including 1 randomized controlled trial. EvidenceHub rates the overall confidence at 42/100 (low).
The Claim
DLPFC-targeted rTMS reduces phantom limb pain and improves psychological comorbidities in traumatic amputees
This conclusion is most relevant to: Traumatic amputees with phantom limb pain (n=27).
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸Effect of DLPFC Targeted rTMS on Phantom Limb Pain and Associated Psychological Comorbidities: A Pilot Randomized Controlled Trial. (Neurorehabilitation and neural repair, 2026) —
How It Works
The proposed biological pathway:
- ▸DLPFC is part of neural circuitry for pain processing and affective aspects of pain
- ▸rTMS induces neuromodulation of DLPFC
- ▸Neuromodulation alters maladaptive cortical plasticity
- ▸Result: Reduced phantom limb pain and improved psychological symptoms
Who Might Benefit
Evidence fit by population:
- ▸Traumatic amputees with phantom limb pain (n=27)
Recommended Dose
10 sessions of 1Hz rTMS at 90% resting motor threshold
Limitations & Caveats
Important context when interpreting this evidence:
- ▸Small sample size (n=27) limits generalizability
- ▸Pilot study design may not have sufficient power to detect all effects
- ▸No long-term follow-up beyond 60 days post-therapy
Frequently Asked Questions
What is DLPFC-rTMS and how does it work for phantom limb pain?▼
DLPFC-rTMS is repetitive transcranial magnetic stimulation applied to the dorsolateral prefrontal cortex. It modulates neural activity in pain-processing circuits, potentially reducing maladaptive plasticity associated with phantom limb pain.
How many sessions of rTMS were given in this study?▼
Participants received 10 sessions over 2 weeks, with 1Hz stimulation at 90% resting motor threshold.
What outcomes were measured in the trial?▼
Primary outcome was pain intensity (VAS). Secondary outcomes included pain quality (SF-MPQ), anxiety (HAM-A), depression (HAM-D), and quality of life (WHOQOL-BREF).
Is DLPFC-rTMS effective for phantom limb pain?▼
The pilot RCT found that real rTMS was associated with improvements in pain, anxiety, depression, and quality of life compared to sham, suggesting potential as an adjunctive treatment, but larger trials are needed.
References
- 1.Vats D, Bhatia R, Sagar S, Kumar A, Yadav RK, Khan MA, Gulati S, Singh A. “Effect of DLPFC Targeted rTMS on Phantom Limb Pain and Associated Psychological Comorbidities: A Pilot Randomized Controlled Trial..” Neurorehabilitation and neural repair, 2026. PMID: 42638615 DOI: 10.1177/15459683261477087