A longer-lasting treatment that uses targeted heat to quiet the knee nerves responsible for chronic pain, providing months of relief without surgery.
Genicular Radiofrequency Ablation (RFA) is a minimally invasive procedure used to provide long-term pain relief for patients suffering from chronic knee pain, particularly pain associated with osteoarthritis (OA), inflammation, or joint degeneration. The procedure involves using radiofrequency (RF) energy to target and destroy the genicular nerves that are transmitting pain signals from the knee joint to the brain. By disrupting these nerve signals, genicular RFA helps alleviate pain and improve function in the knee.
This procedure builds on the results of a genicular nerve block. If a diagnostic block confirmed that the genicular nerves are responsible for your knee pain, RFA takes the next step by creating a longer-lasting disruption of those nerve signals. Instead of a temporary numbing agent, RFA uses controlled heat delivered through a specialized needle to create a small lesion on each targeted nerve. This prevents the nerve from sending pain messages to your brain for an extended period.
The nerves treated during this procedure only carry pain signals. They do not control any muscles or movement in your leg, so the procedure does not affect your ability to walk, bend, or use your knee normally. Over time, the treated nerves will slowly regenerate, which is why the procedure may need to be repeated. But for most patients, the relief lasts six months to a year or more, making it one of the most effective non-surgical options for managing chronic knee pain.
Genicular RFA is appropriate for patients who have already had a successful genicular nerve block. You may be a candidate if:
This is an excellent option for patients who want meaningful, long-term pain reduction without the risks, downtime, and rehabilitation associated with surgical intervention.
The procedure is performed in an outpatient setting and typically takes 30 to 45 minutes.
You will be positioned comfortably with the knee accessible. The skin is cleaned and numbed with a local anesthetic. You will be awake during the procedure, though mild sedation may be available.
Using fluoroscopy or ultrasound guidance, your doctor will place specialized radiofrequency needles at the same genicular nerve locations identified during your diagnostic block. Before the ablation begins, sensory testing is performed using a small electrical current to confirm that the needle is in the correct position near the pain-carrying nerve and away from any motor nerves.
Once proper placement is confirmed, the tip of each needle is heated to a controlled temperature for 60 to 90 seconds, creating a small lesion on the nerve. This process is repeated at each targeted location around the knee.
After all nerves have been treated, the needles are removed and bandages are applied. The entire procedure is well-tolerated by most patients.
Genicular RFA is covered by most insurance plans, including Medicare, when the patient has had a documented successful diagnostic genicular nerve block. Prior authorization is commonly required. Our team will handle the authorization and inform you of any costs before the procedure.
Recovery from genicular RFA is straightforward, though it takes a little longer than a simple nerve block.
For the first few days, you may experience increased soreness, swelling, or a mild burning sensation around the knee. This is a normal response to the heat treatment and typically resolves within one to two weeks. Ice, elevation, and over-the-counter pain relievers can help during this period.
Avoid high-impact activities and prolonged standing for the first one to two weeks. Gentle walking and light movement are encouraged. Most patients return to their full activity level within two to three weeks.
The full pain-relieving effects develop gradually over two to six weeks as the treated nerves stop transmitting pain signals. Do not judge the results during the first week or two.
Genicular RFA provides some of the longest-lasting non-surgical relief available for chronic knee pain.
Most patients experience significant pain reduction lasting six months to a year or longer. Many report improved walking ability, better sleep, and a return to activities they had been avoiding due to knee pain. Studies on genicular RFA for knee osteoarthritis have shown meaningful improvements in both pain scores and functional outcomes.
When the nerves eventually regenerate and pain returns, the procedure can be repeated with similar results. Many patients undergo genicular RFA on a recurring basis as part of their long-term pain management plan.
For the best results, combine the procedure with physical therapy and a strengthening program to support the muscles around your knee.
Here is what to keep in mind before your genicular RFA:
Diagnostic block required: You must have had a successful genicular nerve block before RFA can be performed. Most insurance plans require documented relief of 80% or more from the diagnostic block.
Medications: Inform your doctor about all medications, especially blood thinners and NSAIDs. Some may need to be paused.
Post-procedure soreness: Expect a few days to two weeks of increased knee soreness. This is normal and temporary.
Patience: Full results develop over two to six weeks. Give the treatment time to work.
Transportation: Arrange for someone to drive you home.
Diabetes: Blood sugar may be temporarily elevated if steroids are used during the procedure. Monitor closely.
For patients who cannot or do not want knee replacement surgery, genicular RFA offers a proven, repeatable option for managing chronic knee osteoarthritis pain.
While steroid injections may fade in weeks, genicular RFA disrupts the pain signal at its source and typically provides six months to over a year of meaningful relief.
Genicular RFA is only performed after a successful diagnostic nerve block confirms the correct targets. This evidence-based approach ensures the treatment is directed at the right nerves for the best possible outcome.
As the treated nerves slowly regenerate over time, the procedure can be repeated with the same effective results. Many patients incorporate genicular RFA into their ongoing pain management plan.
