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Keywords:

  • cancer;
  • deafferentation pain

Abstract

Introduction:  Despite technical advances in spinal cord stimulation (SCS), there is a paucity of recent literature regarding SCS for phantom limb pain.

Methods:  Between January 2003 and May 2008, four patients at M.D. Anderson Cancer Center underwent SCS for intractable phantom limb pain. A retrospective chart review was performed to assess outcomes and complications. A PubMed search was performed to review previously published series regarding the efficacy of SCS for phantom limb pain.

Results:  Postoperatively, all patients subjectively reported excellent pain relief (>80%). Patients were all followed with the Brief Pain Inventory. Patients 1 to 3 each reported a two-point decrease in their usual amount of pain using the numerical rating scale. Patient 4's numerical pain scale was unchanged. When using an 11-point scale to assess other symptomology along 10 dimensions, patients 1 to 3 demonstrated a decrease in their total symptom score by 13, 14, and 4 points, respectively. Patient 4 reported an increase by 5 points in his total symptom score. With regard to complications, patient 2 developed an allergic dermatitis to the generator requiring revision with a polyfluoroethylene (GorTex) pouch. Patient 3 developed a surgical site infection after an implantable pulse generator change. Patients 2 to 4 were very satisfied with their stimulator and would choose to undergo implantation again, with patient 1 having an equivocal response.

Conclusions:  For selected patients who have not obtained adequate relief with medical management, SCS for phantom limb pain can prove an effective intervention. ▪