ArticleIndian journal of anaesthesia2026
Long-term outcomes of cooled versus conventional radiofrequency ablation of genicular nerves for chronic knee osteoarthritis pain: A randomised comparative study.
Article in Indian journal of anaesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Background and Aims: Chronic knee pain due to osteoarthritis is a prevalent cause of disability. Radiofrequency ablation (RFA) of genicular nerves is a promising approach for alleviating pain and improving function in knee osteoarthritis. This study compares the long term efficacy of cooled and conventional RFA in managing chronic knee pain and disability by observing and comparing pain relief and improvement in functional disability up to 24 months postprocedure. Methods: Forty patients aged >50 years with Kellgren-Lawrence grade 3 and 4 were enroled. Fluoroscopic-guided genicular nerve ablation was performed on 30 patients: 15 with cooled RFA and 15 with conventional RFA, following positive diagnostic blocks. Pain (Numeric Rating Scale (NRS) and functionality (Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC score) were assessed at 3, 6, 12, 18, and 24 months. Chi-square test, independent Results: At 3 months, the Group cooled RFA demonstrated significantly greater reductions in NRS (73.33% vs 53.33%) compared to the Group conventional RFA. Improvement in the WOMAC functional score was found to be better at 3 months in the Group conventional RFA (73.33% vs 66.66%), but at 6-month and subsequent follow-up, the Group cooled RFA had better improvement in functional score. These differences persisted till 24 months, with NRS Conclusions: Cooled radiofrequency ablation offers superior long-term benefits in pain relief and functional improvement compared to conventional.
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