Inclusion Criteria:  Age 50 to 85 years old, legally able and willing to participate in the study and all follow-up visits Able and willing to complete the research questionnaires, follow instructions, push the halt button and to communicate with investigator and research team Patient with bilateral or unilateral low back pain of > 6 months duration Patients whose back pain is alleviated by recumbency or comfortable sitting position Patients presenting with a) a positive (>80% pain relief) to a previous, double, L1 to L5 (down to sacral-ala) lumbar medial branch block (within the last 12 months) and/or b) with a positive (>70% pain relief lasting more than 6 months) to a previous lumbar facet thermal radiofrequency enervation Average low back pain score of 6 or higher in the last month (on 0-10 scale)  Exclusion Criteria:  Pregnant or breastfeeding patient Patients younger than 50 or older than 85 years BMI greater than 40 Patients presenting with neurological deficits (including lumbosacral radiculopathy but not solitary radicular pain) Patients with history of lumbosacral spine surgery excluding previous lumbar radiofrequency neurotomy Patients who have had lumbar radiofrequency neurotomy in the past 6 months Patients with the presence of metal hardware or other foreign objects at the lumbosacral spine Patients with history of lumbar spine pathology that may increase procedural risk and/or influence symptoms and/or generate unrelated adverse event (per investigator's discretion) Patients unable to understand and complete the research questionnaires in the official language used within the particular sites' location Patients presenting with any severe medical condition preventing the patient from safely and effectively being treated in the study or reporting study outcomes (per investigator's discretion) Patient with extensive scarring of the skin and tissue overlying the treatment area Patients enrolled in or planned to be enrolled in another clinical trial during the duration of this research project Any patients with an uncontrolled coagulopathy Patients with known osteoporosis with absolute risk of spinal fracture of > 10% over 10 years Any patients with a history of malignant disease in the past five years Patients with rheumatologic diseases causing spine pain that are currently receiving active treatment including steroids, disease modifying drugs, biological agents or immunosuppressants Patients known for concomitant psychiatric disorders, excluding mood disorders Patients presenting with concomitant mood disorders (deemed severe by the research physician) Patient with first-degree family member already enrolled in this study Patient who is scheduled for any interventional/surgical procedure within 3 months from screening date Patients diagnosed with co-morbid multifocal chronic pain (e.g. fibromyalgia) Patient is not able to undergo MRI with contrast Patient has a primary source of pain that is 2 or more points higher on the NRS score than the patients low back pain Patient has had a steroid injection within the last 2 months from date of enrollment at the location of the planned treatment