Dekompressor^® is a new device for the percutaneous lumbar discectomy. With Dekompressor^®, the percutaneous lumbar discectomy for the treatment of radicular pain associated with disc herniation can be performed at minimum invasion level. We treated 43 patients using a Dekompressor^® under fluoroscopic guidance. The intensity of pain and the level of physical functions were evaluated 7, 30, and 90 days after the procedure using visual analogue scale (VAS) and Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ), respectively. Follow-up data after 90 days were obtained from 33 patients. The reported average radicular pain VAS level was 64.8 mm before the procedure and 33.8 mm after 90 days. The effectiveness rate of low back pain, which was calculated by JOABPEQ was 74.2 %. None of patients reported procedure-related complications. Dekompressor^® procedure can be a safe and efficient treatment of patients with radicular pain associated with disk herniation.