Is the Efficacy of Epidural Steroid Injections Related to the Different Volume Injections?

Inclusion Criteria: * acute discogenic pain with less than three months duration not responding to other modalities of conservative management \[NSAIDs, physiotherapy, bracing, etc.\], * radiological disc bulging accompanying unilateral root impingement symptoms, * an Oswestry daily activity score more than 20 percent, and * resistance to treatment. Exclusion Criteria: * Patients with bilateral root impingement symptoms, neurological deficits, and/or history of previous lumbar disc surgery, severe cardiac, pulmonary, gastrointestinal, renal diseases, glaucoma, urinary retention, and/or known allergy to the drugs used in the study were excluded from the study.