Evaluation of the Benefit and Safety of Localized Tissue Hydration in the Management of Chronic Low Back Pain

"Patients will receive a localized subcutaneous injection of 0.9% sodium chloride over 10 sessions (1 session per week), combined with standard treatment including stage I and II analgesics and physiotherapy in line with the recommendations of the French National Authority for Health.~At each session, 250ml to 500ml of physiological serum will be injected subcutaneously using a Meso-Kit-Perfuser\* or injection octopus positioned by the nurse according to the injection points defined by the investigating physician during the inclusion visit, with a dermographic tracer for surgical use."