Below is an educational, technical answer to a question many patients and clinicians ask. 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. 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
Interventional pain management, sometimes called algology, addresses chronic back, neck, joint, and tumor-related pain that has not responded adequately to conservative measures. RF procedures are generally performed percutaneously under imaging guidance, and modern generators provide feedback on parameters such as temperature and impedance to support safe energy titration. 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.
Who is a candidate for radiofrequency ablation?
Candidacy is a clinical judgment based on the pain diagnosis, its location, and the response to prior measures such as diagnostic nerve blocks. It may be considered for facet-mediated spinal pain, sacroiliac pain, or genicular knee pain in appropriately selected patients. The device instructions for use define contraindications and precautions that must be observed. Only a qualified pain specialist can determine whether a patient is suitable; this content is educational.
What This Means in Practice
INVAMED pain management devices are for use by trained pain specialists under imaging guidance and per the instructions for use. 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.
Key Considerations
- Real-time feedback on temperature, impedance, and lesion size is intended to support safe energy titration during RF procedures.
- 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.
Frequently Asked Questions
What feedback does the Peta RFA system provide?
INVAMED states the Peta RFA for Pain provides real-time feedback on temperature, impedance, and lesion size to support safe energy titration.
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.
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.
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 literature commonly cites facet RF relief in the range of about 6 to 12 months, but individual duration varies and is not guaranteed. Manufacturer descriptions reflect device design intent rather than a guaranteed outcome for any individual. Its use is planned individually as part of a broader oncological and pain management strategy. 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. The number and location of lesions are planned individually under imaging guidance. RF procedures are generally performed percutaneously under imaging guidance, and modern generators provide feedback on parameters such as temperature and impedance to support safe energy titration. The INVAMED Peta platform provides this feedback, and the ThermoEdge RFA Platform sits within the same RF portfolio. 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.
Important Disclaimer
This article is intended for general educational and technical information about medical device technologies. It is not medical advice, a diagnosis, or a treatment recommendation, and it does not replace consultation with a qualified healthcare professional. Any decision about diagnosis or treatment should be made by a licensed clinician based on an individual assessment. INVAMED devices are intended for use by trained healthcare professionals in accordance with the applicable Instructions for Use (IFU) and local regulatory approvals. Product availability and indications vary by country.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.