Retrospective Study of the Results of Cooled Radiofrequency for Genicular Nerves Neurotomy in 40 Consecutive Patients With Osteoarthritis of the Knee and Painful Knee Arthroplasty

Cooled RF consists of creating an injury in the nerve trough a high frequency flow. Unlike conventional RF, in cooled RF through a closed circuit where intravenous flows, we can create an injury for a longer period of time, at a lower temperature (standard RFA 90º C, cooled RFA 60º C) and within an area 8 times larger. As the lesion is spherical, and larger (about 10-12 mm in diameter), the chances of neurolysis of the nerve increase.