Epidural and Nerve Root Corticosteroid and Local Anaesthetic Injections for Lumbar Nerve Root Compression

INTERVENTION: Randomised, double blind. 50 patients with proplapsed disc, 50 patients with spinal stenosis. Each group randomised into 2 treatment arms (25 in each): 1. Nerve root injection of local anaesthetic and corticosteroid 2. Epidural injection of local anaesthetic and corticosteroid CONDITION: Musculoskeletal Diseases: Spinal stenosis ; Musculoskeletal Diseases ; Spinal stenosis PRIMARY OUTCOME: Pain relief on a visual analogue scale SECONDARY OUTCOME: Not provided at time of registration INCLUSION CRITERIA: 100 patients with diagnosis of prolapsed disc or spinal stenosis of the lumbar‐sacral vertebrae. Unilateral pain radiating from back to below knee lasting 6‐28 weeks, with leg pain being greater than back pain.