Percutaneous adhesiolysis, also called the RACZ procedure or epiduroscopy, is a minimally invasive, interventional procedure that breaks up scar tissue in the epidural space. Epidural scarring can arise from spinal surgery, the aging process, or spinal arthritis. If left untreated, it can result in nerve root compression, causing chronic back and leg pain. The RACZ procedure, founded by Dr. Racz, is performed using x-ray guidance and a special spring catheter to administer an anesthetic and steroid medication. During the procedure, a physician may also use pulsed radiofrequency energy to encourage nerve regeneration. Patients may experience several weeks or months of pain relief after the procedure.