Effect of Different Volumes on Pain Relief in Patient Receiving Fluoroscopic Guided Interlaminar Lumbar Epidural Steroid Injection.

Background: Epidural steroids injections (ESI) are frequently used to treat lumbar radicular pain. Although different volume have been used for interlaminar ESI in adults, there is no controlled trial comparing the effect of different volumes on pain relief for the same dose of steroid .

Objective: To compare the effect of increase in volume of epidural drug on pain relief in lumbar ESI.