Evaluation of Efficacy and Safety of Intradiscal Gelified Ethanol in Refractory Cervical Discogenic Pain

Inclusion Criteria: * Patient 18 years or older; * Pain refractory to conservative treatments for more than 2 months, non-surgical patients * Cervicobrachialgia due to disc herniation * Chronic discogenic pain (1 or 2 cervical discs) with concordant MRI; * Patient agreeing to participate in the study and having given written consent; * Patient enrolled in a health insurance plan. Exclusion Criteria: * Prior surgical treatment of the disc(s) studied; * Sick leave of more than 12 months secondary to painful symptoms; * Patient with Modic 1 score or more * History of cognitive-behavioral disorders that could affect the completion of self-questionnaires; * Local or systemic infection, or suspicion of infection; * Severe coagulation disorders; * Other inflammatory rheumatic disease; * Severe underlying pathology with life expectancy \<1 year; * Women of childbearing age who are pregnant at the inclusion visit or who wish to become pregnant before the administration of the treatment (V0); * Known allergy to contrast material and/or local anesthetic substances; * Patients who cannot read or write Italian; * Major person benefiting from a legal protection regime (guardianship, curatorship, safeguard of justice);