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Genicular Artery Percutaneous Radiofrequency Thermocoagulation: A Technical Note.

Jimmy Wen¹, Romteen Sedighi¹, Ihab Abed¹

¹California Northstate University College of Medicine, CA.

Pain Medicine Case Reports

|May 1, 2026

Summary

This summary is machine-generated.

Radiofrequency thermocoagulation (RFTC) of genicular arteries offers a novel treatment for chronic knee osteoarthritis pain. This minimally invasive procedure successfully reduced pain and improved function in a patient with refractory knee OA.

Keywords:

Genicular artery; percutaneous osteoarthritis radiofrequency thermocoagulation

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Area of Science:

Orthopedics
Pain Management
Interventional Radiology

Background:

Knee osteoarthritis (OA) is a degenerative joint disease causing chronic pain.
Angiogenesis is implicated in the development of OA pain.
Refractory knee OA presents a challenge for existing treatments.

Purpose of the Study:

To present a novel application of genicular artery radiofrequency thermocoagulation (RFTC) for refractory knee OA.
To evaluate the safety and efficacy of RFTC targeting genicular arteries in knee OA.

Main Methods:

Radiofrequency thermocoagulation (RFTC) of the superior medial and lateral genicular arteries (SMGA/SGLA).
Procedure involved RFTC at 90°C for 90 seconds per cycle until arterial flow was absent on ultrasound.
Patient outcomes assessed using visual analog scale (VAS), WOMAC, and Patient Global Impression of Change (PGIC) at 6-month follow-up.

Main Results:

Significant pain reduction reported (VAS score of 1).
Marked improvement in function and quality of life (WOMAC score of 30).
Patient reported "Very Much Improved" with no need for analgesics or bracing at 6 months.

Conclusions:

Minimally invasive RFTC targeting the SMGA/SGLA is a safe and effective treatment for refractory knee OA.
This approach offers a potential new therapeutic option for chronic knee pain.
Successful application highlights the role of genicular artery ablation in managing OA pain.