Effectiveness and Safety of Atelocollagen in the Management of Chronic Non-specific Low Back Pain

"This collagen-contained product is used to supplement tendon, ligament, muscle, and (biological) membrane that is missing or damaged during internal/surgical treatment and surgery.~Patients with chronic low back pain are randomized after obtaining informed consent for the study.~Participants are divided into group A (atelocollagen) and group B (control). A physical examination for lumbar pain was performed and evaluated trigger points in multifidus, erector spinae, and quadratus lumborum muscles.~After physical exam, cross sectional area of each muscle is measured by ultrasound in both gorup.~Group A will receive atelocollagen mixture (atelocollagen 3 mL + 1% lidocaine 3 mL) and group B will receive local anesthetics only (Normal saline 3 mL + 1% lidocaine 3 mL).~Each participants will be injected 1 mL of injectate into each muscle on both sides (total 6 mL)."