Predictive factors associated with successful response to utrasound guided genicular radiofrequency ablation
10.3344/kjp.2022.35.4.447
- Author:
Selin Guven KOSE
1
;
Halil Cihan KOSE
;
Feyza CELIKEL
;
Omer Taylan AKKAYA
Author Information
1. Department of Pain Medicine, Health Science University Gaziler Physical Therapy and Rehabilitation Training and Research Hospital, Ankara, Turkiye
- Publication Type:Clinical Research Article
- From:The Korean Journal of Pain
2022;35(4):447-457
- CountryRepublic of Korea
- Language:English
-
Abstract:
Background:Ultrasound-guided genicular nerve radiofrequency (RF) procedures are of interest in the management of chronic knee pain. A wide variety of demographic, clinical, and procedural characteristics can affect treatment success. This study aimed to determine predictive factors to provide superior treatment outcomes.
Methods:The demographic, clinical, and technical data of patients who received genicular nerve RF for knee pain between September 2016 and September 2021 were evaluated. A positive outcome was defined as at least 50% pain relief on a pain score for at least 6 months. Logistic regression analysis was performed to determine the factors associated with a successful response to genicular RF.
Results:Among 206 patients who underwent genicular RF, 62% of the patients reported successful outcomes at 6 months. In the multivariate model, targeting 5 nerves (odds ratio [OR], 6.184; 95% confidence interval [CI], 2.291–16.690; P < 0.001) was the most significant predictor of successful outcomes. Multivariable logistic regression analysis showed that prognostic genicular nerve block with a 50% cut-off value (OR, 2.109; 95% CI, 1.038–4.287; P = 0.039), no opioid use (OR, 2.753; 95% CI, 1.405–5.393; P = 0.003), and depression (OR, 0.297; 95% CI, 0.124–0.713; P = 0.007) were the predictive factors significantly associated with response to genicular RF.
Conclusions:Clinical and technical factors associated with better treatment outcomes were ultimately targeting more nerves, performing prognostic block, no opioid use, and no depression. These results are expected to be considered when selecting patients for genicular RF.
