Patient Characteristics and Outcomes
| Pre-CRFA | Post-CRFA, 3 months | Post-CRFA, 6 months | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Case | Age, years/Sex | OA Gradea/Location | VAS | WOMAC | Diagnostic Block Reliefb | VAS | WOMAC | VAS | WOMAC |
| 1 | 78/M | 4/Right knee | 8/10 | 64/96 | >70% | 1/10 | 33/96 | 2/10 | 39/96 |
| 2 | 60/F | 4/Left knee | 7/10 | 62/96 | >70% | 2/10 | 32/96 | 3/10 | 39/96 |
↵aAssessed with the Kellgren and Lawrence scale, in which grade 0 signifies no osteoarthritis and grade 4 signifies severe osteoarthritis.
↵b≥2 hours.
Notes: The visual analog scale (VAS) ranges from 0 to 10, with 0 corresponding to no pain and 10 corresponding to worst pain. Scores for the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) range from 0 to 96, with higher scores denoting higher levels of functional difficulty.
CRFA, cooled radiofrequency ablation; F, female; M, male; OA, osteoarthritis; VAS, visual analog scale; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.