RFA therapy for pain
Radiofrequency Abliation therapy (RFA) is a minimally invasive procedure used to treat pain, especially when other treatment methods are not effective. It uses radiofrequency energy to raise the temperature locally and damage the nerves that transmit pain signals to the brain. The treatment is carried out on an outpatient basis and can be used for different types of pain, including spinal, joint, head and facial pain.
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Key benefits of RFA:
- Effectiveness: in most cases, patients experience significant pain relief after the procedure.
- Minimally invasive: No need for major surgical interventions, resulting in fewer risks and faster recovery.
- Long-term effect: The effects of treatment can last from several months to several years.
- Fast recovery: Patients can often return to normal activities within a few days after the procedure.
- Preparation: the patient lies on the treatment table. Local anaesthesia is used to reduce discomfort.
- Nerve localisation: Using fluoroscopy (X-ray control) or ultrasound control, and the generator's ability to test motor and sensory functions, the doctor pinpoints the exact location of the nerves needed.
- Radiofrequency electrodes: Cannulas and thin electrodes are inserted through the skin and directed to the location of these nerves.
- Heat generation: With the help of radiofrequency energy, the temperature in the tissues is raised to the threshold where the nerves are affected. This disrupts their function to transmit pain signals.
- RF Generator: A device that generates radio frequency energy. It controls the intensity and duration of the energy to achieve therapeutic temperatures at the required nerve sites.
- Electrodes: Thin, needle-shaped probes that are inserted through the skin to the target nerves. They transmit radiofrequency energy from the generator to the tissues. Temperature sensors (thermocouples) built into the electrodes measure and control the temperature to prevent excessive tissue damage.
- Needles (cannulas): Used to insert the electrodes up to the target nerves. Usually the needles are covered with insulation, leaving the distal end uninsulated, so that the RF energy is concentrated at the precise location. Different needle lengths and diameters are available. The most commonly used needles are 10-15 cm in length and 18-22 G (diameter).
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