The Effectiveness and Risks of Non-Image-Guided Lumbar Interlaminar Epidural Steroid Injections: A Systematic Review with Comprehensive Analysis of the Published Data.

Objective: To determine the effectiveness and risks of non-image-guided lumbar interlaminar epidural steroid injections.

Design: Systematic review.

Interventions: Three reviewers with formal training and certification in evidence-based medicine searched the literature on non-image-guided lumbar interlaminar epidural steroid injections.