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

Pain Treatment With Cooled Radiofrequency in Osteoarthritis and Total Knee Arthroplasty: Case Series in Hospital Universitario de Son Espases

Analyze the results of cooled radiofrequency in patients with chronic knee pain after one year of follow- up.

The investigators performed a retrospective case-series reviewed of 40 patients who underwent cooled RF of genicular nerves. The investigators evaluated results of the survey of quality of life (SF36), knee society score (KSS) and the Visual Analogue Scale (VAS).

Inclusion Criteria:

• Chronic knee pain (older than 3 months, with no response to physiotherapy, medication or hyaluronic acid infiltration) with a pain intensity according to VAS>7/10
• The radiological criteria were witness of OA with Kellgren-Lawrence index of 2 to 4.
• Painful TKA with no apparent cause and with a radiological image where a proper placement was observed

Exclusion Criteria:

• Infection or lymphangitis of the member
• Acute knee pain
• Corticoids or hyaluronic acid infiltration with a high molecular weight prior to the surgery
• Pregnancy
• Severe neurological or psychiatric disorders
• Patients with pacemakers