Radiofrequency Ablation After Total Knee Arthroplasty

Genicular nerve RFA is a standard outpatient procedure using fluoroscopic guidance to ensure accurate placement of the radiofrequency cannula. After placement of the radiofrequency cannula, nerve stimulation is performed to confirm proper position and ensure that the cannula is not too close to motor fibers. One mL of 2% lidocaine is placed at each of the cannulas. The RFA treatment is then proceeded by rhizotomizing each genicular nerve at 80°C for 90 seconds with a 15-second ramp-up.

Is performed identically to the active treatment but without the application of the RFA current