“…Patients considered for PNfS trials have failed traditional interventional spinal procedures such as epidural steroid injections, medial branch blocks, facet joint nerve ablations, SI injections, and in many cases surgery. Conditions resulting in truncal pain that have been reported to respond to PNfS are lumbar postlaminectomy syndrome, axial cervical pain, PHN, inguinal pain, ilioinguinal neurapraxia, and postthoracotomy pain [4,5,16,17]. Direct nerve stimulation in the lateral recess as well as along the nerve roots has also been described for PHN, post-thoracotomy pain, and ilioinguinal neurapraxia.…”