Target Confirmation (Malik et al): Appropriate fluoroscopic placement of needle-near DRG at the lumbar area is noted; on anteroposterior x-ray projection, the DRG is described to lie immediately behind the lateral aspect of the facet column at all spinal levels and on lateral x-ray projection, it is localized to the dorsocranial quadrant of the IVF (intervertebral foramen) Proximity of the needle to the DRG is determined by appropriate sensory stimulation with 50 Hz, at more than 0.4 V (avoids intraganglionic placement) and less than or equal to 0.6 V; motor stimulation at 2 Hz with threshold 1.5-2 times greater than sensory threshold to avoid placement near the anterior nerve root. A radiculogram done also confirms the appropriate placement and helps recognise intradural placement of the needle.