Design and participants: Randomised clinical trial pilot study. Eligible candidates will be identified by Physiatrists at a Physiatry clinic in Calgary. The investigators will recruit 30 patients (15 per group). Fifteen - twenty subjects per group provide reasonable bias-corrected estimates for medium effects. Inclusion criteria: Leg dominant pain secondary to lumbar disc protrusion confirmed on MRI with duration > 3 months, at least one neurological sign and able to speak English and provide written informed consent. Exclusion criteria: pregnancy and specific causes of low back pain (LBP) not directly related to herniated discs, progressive neurological signs and/or cauda equine syndrome, or contraindication for the use of corticosteroids or fluoroscopy. Consecutive patients will randomised into either the intervention described below to enable an estimation of the magnitude of the treatment effect or the usual care will be followed to estimate the magnitude of effect for the control group.