This article compares two approaches side by side to clarify how they differ in principle and practice. A central technique is radiofrequency (RF) treatment, in which controlled energy is delivered through an electrode to thermally ablate or modulate nerves that transmit pain signals. 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
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. 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. Whether an RF procedure is appropriate, and which target is selected, is a clinical decision made by a pain specialist after diagnostic assessment.
Facet RFA vs Genicular (knee) RFA: Key Differences
Facet radiofrequency ablation targets the medial branch nerves of the spinal facet joints to address axial back or neck pain. Genicular RFA targets the sensory nerves around the knee to address chronic knee pain. Both use controlled RF energy through an electrode, but they are directed at different anatomical regions. INVAMED offers the Peta RFA System, Nerve for spinal targets and the Peta RFA for Knee Pain, with target selection made by the clinician.
How INVAMED Supports Both Approaches
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. The range includes the Peta RFA for Pain with real-time temperature, impedance, and lesion-size feedback, the Peta RFA System, Nerve for cervical, thoracic, lumbar, and sacroiliac targets, the Peta RFA for Knee Pain, the Fusion Intraosseous RFA System for Spinal Tumors, and the ThermoEdge RFA Platform. For pain units and distributors, INVAMED positions a radiofrequency portfolio spanning spinal, sacroiliac, knee, and intraosseous applications.
Key Considerations
- 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.
- 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
How long does RF ablation relief last?
The literature commonly cites facet-related relief of about 6 to 12 months, but duration varies by patient and target and is discussed with the treating specialist.
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.
What is the regulatory status of these RF devices?
Regulatory status such as European market authorization and manufacturing standards are stated in the product documentation and depend on local registration by market.
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
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. The number and location of lesions are planned individually under imaging guidance. A central technique is radiofrequency (RF) treatment, in which controlled energy is delivered through an electrode to thermally ablate or modulate nerves that transmit pain signals. Interventional pain management, sometimes called algology, addresses chronic back, neck, joint, and tumor-related pain that has not responded adequately to conservative measures. Manufacturer descriptions reflect device design intent rather than a guaranteed outcome for any individual. Whether an RF procedure is appropriate, and which target is selected, is a clinical decision made by a pain specialist after diagnostic assessment. The literature commonly cites facet RF relief in the range of about 6 to 12 months, but individual duration varies and is not guaranteed. Its use is planned individually as part of a broader oncological and pain management strategy.
Important Disclaimer
The information here is provided for educational purposes and to describe device technology; it is not a substitute for professional medical advice, diagnosis, or treatment. Only a licensed healthcare provider can determine whether a given procedure or device is appropriate for a specific patient. INVAMED products are restricted to use by qualified professionals following the official IFU. Regulatory clearance and labeling differ between regions, and not all products or indications are available in every market.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.