Trans-arterial Embolization for the Treatment of Facet Pain Due to Facet Arthropathy

Inclusion Criteria: * Age 18-85 * Confirmed diagnosis of spinal facet arthropathy on MRI OR CT * Confirmed diagnosis of lumbosacral facetogenic pain based on diagnostic nerve blocks. * Failed medical management of pain. * Back pain persistent for at least 6 months * Pain worse than at least 6/10 on a visual analog pain scale * Failed at least one of either intra-articular injections of steroids/ anesthetics or neuro-ablative procedure. * Maximum of 2 spinal levels of facetogenic pain in the lumbar and sacral spine (i.e. L4-5 and L5-S1). * Modified Rankin Scale 0-2 Exclusion Criteria: * \- Pregnancy * History of prior spinal embolization at the target level. * History of surgery/ stenting of the aorta at the level of embolization. * Severe allergic reaction to iodinated contrast (i.e. anaphylaxis) * Creatinine \> 1.5 mg/dl and/or creatinine clearance \< 60 mL/min (except if patients is already on hemodialysis). * Modified Rankin Scale \>2 * Angiographic/ Procedural Exclusion Criterion: Vascular supply to the spinal cord from the vessels supplying the facet joints targeted for embolization.