Kennedy DJ, Huynh L, Wong J, Mattie R, Levin J, Smuck M, Schneider BJ. Corticosteroid Injections into Lumbar Facet Joints: A Prospective, Randomized, Double-Blind Placebo-Controlled Trial. American journal of physical medicine & rehabilitation. 2018 May 4. PMID: 29734232 [PubMed]
Corticosteroid injections into the intra-articular (IA) zygapophysial (z-joints) are frequently utilized to treat this cause of low back pain. No studies have been done on the efficacy of IA corticosteroids in those with z-joint pain confirmed by dual comparative medial branch blocks (MBB).