Radiofrequency ablation, Spinal cord stimulator insertion, Nerve block, Epidural steroid injection, Trigger point injec...tion, Peripheral nerve stimulation, Ablation, Epidural, Peripheral nerve block, Epidural blood patch, Back pain, Complex regional pain syndrome, Central sensitization, Neurogenic claudication , Peripheral neuropathy, Muscle spasms, Nerve irritation, Pain NOS, Arthritis, Neck pain, Sciatica, Chronic pain, Chronic pain syndrome , Radiculopathy, Piriformis syndrome, Spondyloarthritis, Osteoarthritis, Peripheral nerve injury