Effect of lumbar medial branch blocks on extension-related axial chronic low back pain in a pediatric population: a retrospective chart review and prospective follow-up.

Chronic low back pain (CLBP) is common among adolescent athletes.[1 2][1] Extension-related axial CLBP can arise from posterior elements of the spine, including lumbar zygapophyseal/facet joints. Lumbar medial branch blocks (LMBB) are used diagnostically and therapeutically in adults to treat facet