Lumbar Medial Branch Block Volume Dependent Dispersion Patterns as a Predictor for Ablation Success: A Cadaveric Study

Conclusion We suggest that 0.5ml injectate volume in clinical practice may produce an adjacent level nerve block in addition to intended injection level,[1] thus decreasing the specificity of a targeted lumbar medial branch block. 0.25ml of injectate reliably contacted the lumbar medial branches without extensive extravasation. Presumably, this means 0.25ml total volume for a lumbar medial branch block may provide greater specificity for RFA planning.
Source: PMandR - Category: Rehabilitation Source Type: research