IRCT20201128049512N1 IRCT 2020-12-14 Iran University of Medical Sciences Comparison of the effects of paraspinal ozone injection and the effects of physiotherapy on chronic low back pain Comparison of the effects of paraspinal ozone injection and the effects of physiotherapy on chronic non-radicular low back pain 2020-12-21 anticipated 64 Complete https://irct.ir/trial/52633 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization method: block Randomization unit: individual Randomization tool: Random number tables. 3 Nonradicular chronic low back pain. Intervention 1: Intervention group: Injection of 10 cc of ozone (15 micrograms) with 2 cc of lidocaine in the paraspinal region of both sides with needle 22-G in completely sterile conditions with lateral approach 2 cm spinus process routinely in the paraspinal region on both sides of maximum tenderness points (Multi level treatment Level up and down the affected surface or in areas 4 L5-L and L5-S1. The injection is given three times a week. Intervention 2: Control group:undergo 10 sessions of physiotherapy for 3 weeks, which includes surface and deep heat, infrared lamp, tens and exercise. Yes - There is a plan to make this available What will be shared: All the patients data can be shared with privacy in regard to patients name When: Access period starts six months after the results are published To whom: Researchers working in academic and scientific institutions Conditions: The use of documents is allowed only by mentioning the source. Where to obtain: Dr Bijan Forogh- Department of physical medicine and rehabilitation, Firoozgar Hospital, valiasr Square How to obtain: Upon authenticated, the data is provided to the individual Comments: