Inclusion Criteria:  Age 18 - 65 years old Patients schedule for elective posterior decompression and stabilization lumbar spine surgery ASA I - III Decompression and posterior stabilization's patients who didn't caused by infection or abscess  Exclusion Criteria:  Patients who refuse to participate in this study Body Mass Index < 18,5 kg/m2 and > 27,0 kg/m2 Patient with history of chronic opioid Patient with coagulation disorder Patient with cognitive disorders Infection at the injection area