Total disc replacement versus fusion in cervical radiculopathy

INTERVENTION: 1. Decompression and fusion of 1‐2 cervical levels. Fusion is done with bone graft from iliac crest and anterior plate stabilisation 2. Decompression and disc replacement with Discover disc prosthesis (DePuy Spine) Both groups are followed up at 3 months, 1 year, 2 years and 5 years. CONDITION: Cervical radiculopathy ; Musculoskeletal Diseases ; Radiculopathy PRIMARY OUTCOME: Neck Disability Index (NDI) at 2 years follow up after intervention SECONDARY OUTCOME: 1. Visual Analaogue Scale (VAS) neck/arm; 2. EQ‐5D; 3. Dysphagia Short Questionnaire (DSQ); 4. Radiographic evaluation; 5. Sick leave; 6. Consumption of analgetics INCLUSION CRITERIA: 1. At least 3 months of radiculopathy 2. Associated findings on Magnetic resonance imaging (MRI) at 1‐2 levels in cervical spine 3. 18‐60 years old