Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Aug 31;15:2577–2586. doi: 10.2147/JPR.S373877

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2022 Kapural et al.

This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php).

PMC Copyright notice

Relationship between RF electrode size and pain relief achieved after RF (A) and longevity of the >50% of pain relief (B). (A) Initial (4–6 weeks) pain relief after tRFA vs CRFA based on probe gauge. Although there was a tendency for the larger diameter electrodes to improve chronic knee pain somewhat better from the baseline, there was no immediate significant difference in improvements of pain scores between patients receiving RFA when using various electrode diameters for ablation. (B) Long-term maintenance of pain relief after tRFA vs CRFA. There was a significant prolongation of >50% of pain relief when the larger diameter of tRFA electrodes and especially CRFA electrodes were used for the knee denervation. Notice that there were much fewer patients in 20 and 16 G electrode groups (n=14 and n=13, respectively).