RecruitingDevice studyA Prospective Study to Evaluate the Efficacy of Iovera Lumbar Medial Branch Cryoneurolysis Versus Radiofrequency Ablation for the Treatment of Chronic Low Back PainA research study is being conducted to compare two treatments for long-term low back pain: * One uses the iovera° system, which applies cold to certain nerves in the lower back. * The other is the standard treatment called radiofrequency ablation, which uses heat. The primary objective is to find out which treatment works better to reduce back pain. Participants in this study will be randomly placed in one of the two treatment groups. The clinical research team will check on participant pain levels and overall health before and after the procedure for about 12 months. The entire study will last about 14 months for each participant.