Fig. 2From: Cooled radiofrequency ablation provides extended clinical utility in the management of knee osteoarthritis: 12-month results from a prospective, multi-center, randomized, cross-over trial comparing cooled radiofrequency ablation to a single hyaluronic acid injectionPercent of Subjects Reporting ≥50% Pain Relief (CRFA = cooled radiofrequency ablation, XO = crossover)Back to article page