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

ConclusionWe suggest that 0.50 ml injections of local anesthetic (LA) during cMBBs contacts many non-intended targets, thus decreasing the specificity of a targeted diagnostic cervical medial branch block. Furthermore, we demonstrated that 0.25 ml of injectate reliably bathed the cervical medial branches without extensive extravasation. This indicates that there would potentially be less local anesthetic effects on distant tissues, increasing the specificity of cervical medial branch blocks and likely improving RFA planning.
Source: PMandR - Category: Rehabilitation Source Type: research