Effectiveness and Safety of Integrative Korean Medicine Treatment for Cervical Disc Herniation with Radiculopathy: One-year Follow-up Results of a Prospective Observational Study

Background: Cervical disc herniation (CDH) often accompanies radiculopathy causing pain in the neck and upper extremities that interferes with daily life. The prevalence of CDH is increasing. The treatment methods recommended are primarily conservative.Methods: In this prospective, single-arm, multicenter, observational study there were 120 patients diagnosed in the past 12 months with CDH (disc protrusion or more severe conditions) accompanied by radiculopathy. Patients received integrative Korean medicine treatment (acupuncture, electroacupuncture, pharmacopuncture, herbal medicine, cupping therapy, and Chuna therapy), approximately twice a week for 2 months, and outcomes were measured. The numeric rating scale, and visual analog scale were used for assessing neck and arm pain, and the neck disability index, patient global impression of change, EuroQol-5-dimension, work productivity and activity impairment questionnaire, and range of motion assessed how pain affected daily activities.Results: Out of 120 patients, 115 completed 2-months treatment, and 114 responded at the 1-year follow-up. The numeric rating scale score for neck or arm pain showed a reduction of 3.96 points (95% CI, 3.63, 4.29) from baseline to 8 weeks, which further improved (95% CI, 4.09, 4.75) at 1 year. Similarly, the visual analog scale score for neck and arm pain, quality of life measures, and function-related measures also showed improvement from baseline, maintaining these gains at 1 year.Conclusion: This observational study suggested that using Korean medicine treatment, a conservative treatment method, as the intervention, may provide long-term benefits in reducing pain and improving function and quality of life for patients with CDH accompanied by radiculopathy.