Inclusion Criteria:  -≥ 18 years old,  Undergoing posterior lumbar spinal one to three levels fusion surgery Having signed a written informed consent form, ASAI-III  Exclusion Criteria:  Contraindication for regional anesthesia (allergy to local anesthetics, neuropathic disease, infection at the puncture site, coagulation disorder, refusal of the technique,…) Contraindication to nonsteroidal anti-inflammatory drugs, Patient who has already had a spinal surgery, Patient with chronic pain syndrome (use > 3 months of morphine, opioid analgesics of class 3, pregabalin or gabapentin) or fibromyalgia, A mental or linguistic inability to understand the study, Pregnant or or breastfeeding women, Patient who can not communicate in Turkish