Traditional versus cooled-radiofrequency neurotomy for the treatment of chronic lumbar facet (zygapophyseal) joint pain.

Traditional radiofrequency ablation (TRFA) effectively treats facet joint-related pain, while water-cooled radiofrequency ablation (CRFA) may offer benefits like larger lesions and easier nerve access. Our goal is to assess the effectiveness of TRFA and CRFA for facet joint-related pain. This retrospective study included an evaluation of 346 RFA interventions performed on 190 patients suffering from long-term low-back pain. The primary outcome was defined as a decrease of ≥50% of the mean numeric rating scale. The primary outcome was achieved at the first follow-up (FU) for both TRFA and CRFA, with pain relief of 55.2 and 60.5%, respectively. At the second FU, the primary outcome was achieved only in the CRFA group (54.1%), although the TRFA group also showed a good improvement (48.6%). In both groups, pain relief was under 50% during the third FU. Our study indicates that both CRFA and TRFA modalities are effective and safe treatments.