Limb Pain, Phantom

The objective of this study is to evaluate efficacy of varied medical and procedural therapies used to treat pain after surgical amputation of a limb. The primary outcome will be assessment of pain severity at rest and with movement as measured by pain scores on Numerical Rating Scale (NRS) 0 to 10, where 0 is not pain and 10 is the worst pain possible, taken on post-operative day 1, day 7, 30 days, 90 days, 6 months, and 1 year (+/- 3 days at each time point).

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.