Sciatic Block in Contralateral Limb for Treatment of Refractory Phantom and Residual Limb Pain; a Double-Blind Randomized Controlled Trial
Mayo Clinic
Summary
This research is being done to determine if an anesthetic like Lidocaine, may be effective when injected around the sciatic nerve of the intact limb in patients with limb loss pain on the contralateral side.
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Lower extremity amputation performed more than 12 months before study enrollment * PLP/RLP in affected amputated limb \> 4 on NRS26 * Pain duration of more than 6 months despite a trial of conservative therapies for at least 2 months, including oral medications, topical medicines, physical therapy, and physical modalities (i.e., heat, cold, transcutaneous electrical nerve stimulation, phonophoresis) * Willingness to undergo image guided diagnostic nerve block Exclusion Criteria: * Refusal / inability to participate or provide consent * Contraindications to diagnostic n…
Interventions
- DrugLidocaine
2 teaspoons of 2% lidocaine injection
- DrugPlacebo
Saline injection
Location
- Mayo Clinic Health System - MankatoMankato, Minnesota