IRCT20110614006803N11 IRCT 2018-03-17 Mazandaran University of Medical Sciences The effect of naloxone spinal injection on the severity of pain after spinal surgery Effect of Ultra-Low Dose interatechal Naloxone on pain intensity after lumbar laminectomy with fusion 2015-08-23 anticipated 80 Complete https://irct.ir/trial/29749 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients who have been admitted to the study were divided into two intervention and control groups using random allocation method (randomisation block), Blinding description: The blindness of the study is that the drug was already prepared by an anesthetist nurse based on the Randomise table and the patient group and Then delivered to the surgeon And he injected medicine into the interactal space. In addition, the surgeon did not interfere with filling in the questionnaire form. Obviously, the anesthetist and the residents who filled in the relevant patient questionnaire had no information about the type of prescription drug to the patient. 3 Pain after lumbar disc surgery. Intervention 1: Intervention group: After completing laminectomy and releasing spinal cord and neural roots, the intervention group received 20 micrograms of naloxone produced by the pharmaceutical company, and 0.2 mg of morphine with insulin syringe was injected by the surgeon to the interathecal space. Intervention 2: Control group: After surgery, only 0.2 mg of morphine with insulin syringe was injected to the intrathecal space by the surgeon. No - There is not a plan to make this available Justification or reason for not sharing IPD is there is no more information.