Introduction
Cervical radiculopathy (CR) is a disabling medical condition characterized by radicular discomfort in one or both upper limbs, as well as sensory, motor, and reflex abnormalities in one or more of the affected nerve root distributions. Cervical radicular pain affects around 83 people out of every 100,000.Retro pulsed disc material, zygapophyseal joint enlargement, and other soft-tissue anomalies can all induce nerve root compression
Previous research has been undertaken to assess the efficacy of PRF for the treatment of radicular pain, and we anticipated that combining PRF with intradiscal ozone therapy would be more effective in improving the outcome in patients with cervical radiculopathy.

Aim of the work
The aim of this study is to compare between pulsed DRG RF at the cervical root combined with intradiscal ozone injection and pulsed RF alone for treatment of patients with discogenic cervical radiculopathy.

Patients
After approval of local Ethics Committee and obtaining a written informed consent from each patient, the present study was carried out at Neurosurgery department, Alexandria University on 60 patients with cervical radiculopathy in a randomized controlled clinical trial.