This article explains, in educational terms, genicular nerve ablation (knee rfa) — how the technology works and where it fits. Whether an RF procedure is appropriate, and which target is selected, is a clinical decision made by a pain specialist after diagnostic assessment. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Chronic Pain Managed with Interventional Radiofrequency Techniques
Common targets include the medial branch nerves supplying the facet joints of the spine, the sacroiliac region, and peripheral nerve branches such as the genicular nerves around the knee. Interventional pain management, sometimes called algology, addresses chronic back, neck, joint, and tumor-related pain that has not responded adequately to conservative measures. Thermal RF creates a heat lesion to interrupt pain transmission, while pulsed RF applies energy in bursts intended to modulate the nerve without the same degree of thermal lesioning.
Genicular Nerve Ablation (Knee RFA)
Genicular nerve ablation, or knee RFA, targets the sensory genicular nerves around the knee to address chronic knee pain in selected patients. It is sometimes considered for persistent pain, including after knee surgery, when other measures have not provided adequate relief. The INVAMED Peta Radiofrequency Ablation (RFA) for Knee Pain is positioned specifically for this knee application. Candidacy and target selection are determined by the treating clinician following assessment.
Design and Technical Notes
INVAMED's pain management portfolio centres on radiofrequency lesion generators and electrode systems, organized by the anatomical target and the type of RF energy delivered. Diagnostic nerve blocks are commonly used before radiofrequency ablation to help confirm the pain source, as judged by the clinician. Manufacturer descriptions reflect device design intent rather than a guaranteed outcome for any individual.
Key Considerations
- Manufacturer descriptions reflect device design intent rather than a guaranteed outcome for any individual.
- Diagnostic nerve blocks are commonly used before radiofrequency ablation to help confirm the pain source, as judged by the clinician.
- The literature commonly cites facet RF relief in the range of about 6 to 12 months, but individual duration varies and is not guaranteed.
Frequently Asked Questions
Are these RF devices CE marked?
Regulatory status such as CE marking and manufacturing standards are stated in the product documentation and depend on local registration by market.
Can RF ablation be repeated if pain returns?
Because treated sensory nerves can regenerate, a repeat procedure may be considered in appropriate cases; the timing is an individualized clinical decision.
Does INVAMED make a system for knee nerve ablation?
Yes. The Peta Radiofrequency Ablation (RFA) for Knee Pain is positioned specifically for genicular (knee) nerve applications.
About INVAMED
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Clinical and Technical Context
The INVAMED Peta platform provides this feedback, and the ThermoEdge RFA Platform sits within the same RF portfolio. The INVAMED Peta Radiofrequency Ablation (RFA) for Knee Pain is positioned specifically for this knee application. The choice between pulsed and thermal modes is made by the pain specialist for the specific target. Diagnostic nerve blocks are commonly used before radiofrequency ablation to help confirm the pain source, as judged by the clinician. INVAMED pain management devices are for use by trained pain specialists under imaging guidance and per the instructions for use. Common targets include the medial branch nerves supplying the facet joints of the spine, the sacroiliac region, and peripheral nerve branches such as the genicular nerves around the knee. The INVAMED Peta Radiofrequency Ablation (RFA) for Pain provides controlled radiofrequency energy delivery with real-time feedback on temperature, impedance, and lesion size for safe energy titration. Generator settings are managed by the operator according to the target and the device instructions for use.
Related on INVAMED
- Pain Management, Spine & Algology — product category
- RF Lesion Generators and Feedback: Technology, Uses and Considerations
- Who is a candidate for radiofrequency ablation?
- Sourcing Pain Management, Spine & Algology Devices: A Manufacturer and Procurement Guide
Important Disclaimer
This content is educational and technical in nature and must not be interpreted as medical advice or as a promise of any clinical outcome. Individual results depend on many factors and can only be evaluated by a treating physician. Figures attributed to INVAMED reflect manufacturer or published data and are not a guarantee of results. All INVAMED devices are to be used by trained clinicians per the approved IFU, and availability is subject to local regulatory status.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.