Minimally Invasive Treatment for Chronic Knee Pain
Chronic knee pain can make walking, climbing stairs, exercising, and performing everyday activities difficult. When conservative treatments no longer provide adequate relief—and pain signals from the knee can be traced to specific sensory nerves—genicular radiofrequency ablation (RFA) may be considered.
Genicular radiofrequency ablation is a minimally invasive procedure that uses controlled radiofrequency energy to reduce pain signals carried by selected genicular nerves surrounding the knee.
Unlike treatments that are injected directly into the knee joint, genicular RFA targets the sensory nerve pathways responsible for transmitting pain.
At TOPS Institute, we provide image-guided genicular radiofrequency ablation in Los Angeles and Beverly Hills for appropriately selected patients with chronic knee pain. Our approach focuses on identifying the source of symptoms and determining whether nerve-targeted treatment is appropriate.
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What Is Genicular Radiofrequency Ablation?
Genicular radiofrequency ablation is a minimally invasive procedure that uses controlled radiofrequency energy to disrupt pain signals carried by selected sensory nerves around the knee.
These nerves are commonly referred to as the genicular nerves.
The genicular nerves transmit sensory information, including pain signals, from structures around the knee toward the central nervous system.
During genicular RFA, specialized needles are carefully positioned near selected nerve targets. Radiofrequency energy is then used to create controlled lesions that reduce the nerves’ ability to transmit pain.
The procedure does not remove or replace the knee joint.
Instead, it focuses on reducing the transmission of chronic knee pain.
What Are the Genicular Nerves?
The knee receives sensory innervation from a network of nerves.
Several articular nerve branches around the knee are collectively referred to as the genicular nerves.
These sensory nerve branches transmit pain signals from the knee.
When chronic knee pain persists, selected genicular nerves may be targeted using diagnostic nerve blocks and, for appropriate candidates, radiofrequency ablation.
The objective is to decrease pain transmission while preserving the major motor nerves responsible for controlling movement of the leg.
What Does Genicular Radiofrequency Ablation Treat?
Genicular RFA may be considered for selected patients with chronic knee pain, particularly when symptoms persist despite conservative treatment.
Potential indications may include:
- Chronic knee pain associated with osteoarthritis
- Persistent knee pain when surgery is not currently appropriate
- Knee pain in patients seeking nonsurgical pain-management options
- Selected cases of persistent pain following knee surgery
- Selected cases of chronic pain following total knee replacement
The underlying cause of knee pain should be evaluated before treatment.
Not every patient with knee pain is an appropriate candidate for genicular nerve ablation.
Genicular Radiofrequency Ablation for Knee Osteoarthritis
Knee osteoarthritis is one of the most common causes of chronic knee pain.
Osteoarthritis develops as cartilage and other joint structures undergo degenerative changes.
Patients may experience:
- Aching knee pain
- Stiffness
- Pain with walking
- Difficulty climbing stairs
- Pain when standing from a seated position
- Reduced mobility
- Activity limitations
Genicular RFA does not reverse osteoarthritis or regenerate damaged cartilage.
Instead, it targets selected sensory nerves carrying pain signals from the arthritic knee.
For appropriately selected patients, reducing these pain signals may improve comfort and function.
How Does Genicular Radiofrequency Ablation Work?
Genicular RFA uses controlled radiofrequency energy to generate heat at the tip of a specialized needle.
The needle is positioned near a selected genicular nerve.
Radiofrequency energy then creates a controlled thermal lesion that reduces the nerve’s ability to transmit pain signals.
The process may be repeated at multiple genicular nerve targets depending on the treatment plan.
The procedure does not permanently eliminate the nerve.
Over time, treated sensory nerves may regenerate, which is why pain relief may eventually decrease or symptoms may return.
What Is a Genicular Nerve Block?
Before radiofrequency ablation, a diagnostic genicular nerve block may be used to evaluate whether the targeted sensory nerves contribute to the patient’s knee pain.
During the block, local anesthetic is placed near selected genicular nerves.
The patient then monitors whether their typical knee pain temporarily improves.
The physician may evaluate:
- Percentage of pain relief
- Duration of improvement
- Ability to walk
- Ability to climb stairs
- Ability to stand from a chair
- Changes in other activities that normally produce pain
A meaningful response may help determine whether genicular radiofrequency ablation is an appropriate next step.
Genicular Nerve Block vs. Genicular Radiofrequency Ablation
The procedures target similar nerves but have different purposes.
Genicular Nerve Block
A nerve block uses local anesthetic to temporarily interrupt pain signals.
It can provide diagnostic information about whether selected genicular nerves are contributing to knee pain.
Genicular Radiofrequency Ablation
Radiofrequency ablation uses controlled thermal energy to provide a longer-lasting reduction in pain transmission through the selected nerves.
The diagnostic block may therefore help guide the decision to proceed with RFA.
How Is Genicular Radiofrequency Ablation Performed?
Genicular RFA is generally performed as an outpatient procedure using image guidance.
The procedure typically involves:
- The patient is positioned to provide access to the knee.
- The treatment area is cleaned and prepared.
- Local anesthetic may be used to numb the skin and surrounding tissues.
- Using image guidance, specialized needles are positioned near the targeted genicular nerves.
- Testing may be performed to help confirm appropriate positioning.
- Radiofrequency energy is delivered to create a controlled lesion at each targeted nerve.
- The needles are removed.
- The patient is monitored after the procedure.
The specific nerves treated and technique used depend on the patient’s anatomy and treatment plan.
Why Is Image Guidance Used?
The genicular nerves are small and located near specific anatomical landmarks surrounding the knee.
Image guidance helps the physician accurately position treatment needles near the intended nerve targets.
Precise placement is important because the goal is to affect selected sensory nerve branches while avoiding surrounding structures.
How Long Does Genicular Radiofrequency Ablation Last?
The duration of pain relief varies between patients.
Some patients may experience meaningful improvement for several months or longer.
Eventually, treated nerves may regenerate and begin transmitting pain signals again.
The underlying knee condition also remains present.
For these reasons, genicular RFA should be viewed as a pain-management procedure rather than a permanent cure for knee arthritis or other structural knee conditions.
How Quickly Does Genicular RFA Work?
Pain relief may not occur immediately.
Some patients notice improvement relatively soon, while others require several days or longer before the full effect becomes apparent.
Temporary soreness or increased discomfort can occur following the procedure.
Patients should follow their physician’s individualized post-procedure instructions.
Can Genicular Radiofrequency Ablation Be Repeated?
Repeat genicular RFA may be considered for selected patients if:
- The initial procedure provided meaningful relief
- Function improved
- Pain later returned
- The symptoms remain appropriate for nerve-targeted treatment
The decision to repeat treatment depends on the patient’s previous response, current condition, and overall treatment plan.
Genicular RFA vs. Knee Joint Injection
Genicular RFA and knee injections work differently.
Genicular Radiofrequency Ablation
Targets sensory nerves surrounding the knee to reduce pain transmission.
Knee Joint Injection
Places medication or another injectable treatment inside the knee joint.
Depending on the patient’s diagnosis and treatment plan, joint injections may be used to address inflammation or other aspects of knee pain.
The appropriate treatment depends on the underlying condition, severity of symptoms, and previous response to care.
Learn More About Joint Injections
Genicular Radiofrequency Ablation vs. PRP
Platelet-rich plasma (PRP) and genicular RFA use fundamentally different approaches.
Genicular RFA
Targets sensory nerves to reduce transmission of pain signals.
PRP Therapy
Uses a concentration of platelets prepared from the patient’s own blood and is injected into a targeted musculoskeletal structure as part of a regenerative medicine approach.
Genicular RFA is therefore primarily a nerve-targeted pain procedure, while PRP is directed toward the joint or other musculoskeletal tissue being treated.
Neither treatment is automatically appropriate for every patient with knee pain.
Learn More About PRP Therapy
Genicular RFA vs. Knee Replacement
Genicular RFA does not replace the knee joint and does not correct advanced structural damage.
A total knee replacement surgically removes damaged joint surfaces and replaces them with prosthetic components.
Genicular RFA instead reduces selected sensory pain signals without altering the underlying joint structure.
For some patients, RFA may be considered when:
- Conservative treatment has not provided adequate relief
- Surgery is not currently appropriate
- The patient is not a surgical candidate
- Surgery needs to be delayed
- A patient continues to experience selected chronic pain after knee surgery
Whether knee replacement or another orthopedic treatment is appropriate requires individualized evaluation.
Can Genicular RFA Help Pain After Knee Replacement?
Persistent pain can occur in some patients following total knee arthroplasty.
Before considering genicular RFA, it is important to evaluate potential causes of post-surgical pain.
Problems such as infection, mechanical complications, instability, or other conditions may require orthopedic evaluation rather than nerve ablation.
When serious structural or surgical complications have been appropriately evaluated and persistent pain remains, genicular nerve treatment may be considered for selected patients.
Who Is a Candidate for Genicular Radiofrequency Ablation?
Genicular RFA may be considered for patients with chronic knee pain who meet appropriate clinical criteria.
Potential candidates may include patients who:
- Have chronic knee pain
- Have symptomatic knee osteoarthritis
- Have persistent symptoms despite conservative treatment
- Have difficulty walking or performing normal activities because of knee pain
- Are not currently appropriate candidates for knee surgery
- Want to explore nonsurgical pain-management options
- Have selected persistent pain after knee replacement
- Experience an appropriate response to a diagnostic genicular nerve block when used
A comprehensive evaluation helps determine whether genicular nerve pain treatment fits the patient’s condition and goals.
When Is Genicular RFA Not the Right Treatment?
Genicular radiofrequency ablation may not be appropriate when knee pain is caused by a condition requiring another type of treatment.
Examples may include:
- Acute fracture
- Active infection
- Certain ligament or tendon injuries
- Mechanical complications following knee replacement
- Other conditions requiring surgical or orthopedic management
RFA also does not restore cartilage or correct structural abnormalities within the knee.
Identifying the underlying cause of pain remains important even when the treatment goal is pain reduction.
What Is Recovery Like After Genicular RFA?
Genicular RFA is generally performed on an outpatient basis.
Temporary symptoms may include:
- Localized soreness
- Tenderness
- Temporary increased pain
- Mild swelling or discomfort around treatment areas
Specific activity recommendations vary.
As pain improves, some patients may be able to participate more comfortably in:
- Walking
- Physical therapy
- Strengthening
- Low-impact exercise
- Other rehabilitation activities
Improved activity can be an important part of maintaining knee function.
Is Genicular Radiofrequency Ablation Safe?
Genicular RFA is minimally invasive, but all procedures have potential risks.
Potential risks and side effects may include:
- Temporary soreness
- Temporary increase in pain
- Bruising
- Bleeding
- Infection
- Numbness or altered sensation
- Nerve irritation
- Injury to surrounding structures
- Other uncommon complications
Patients taking blood-thinning medications or those with certain medical conditions may require additional procedural planning.
Potential risks, benefits, and alternatives should be reviewed before treatment.
Genicular Radiofrequency Ablation at TOPS Institute
Chronic knee pain can have many causes, and successful treatment begins with determining why the knee hurts.
At TOPS Institute, we take a diagnosis-driven approach to genicular radiofrequency ablation.
We evaluate:
- Location and pattern of knee pain
- Duration of symptoms
- Physical examination findings
- Relevant imaging
- Previous treatments
- Surgical history
- Functional limitations
- Response to diagnostic nerve blocks when appropriate
before determining whether genicular RFA is appropriate.
For selected patients with chronic knee pain, genicular radiofrequency ablation may provide longer-lasting pain reduction without replacing or surgically altering the knee joint.
For patients seeking genicular radiofrequency ablation in Los Angeles or Beverly Hills, TOPS Institute provides personalized interventional pain management focused on accurate diagnosis, appropriate patient selection, and targeted treatment.
Schedule a Consultation
Frequently Asked Questions About Genicular Radiofrequency Ablation
What is genicular radiofrequency ablation?
Genicular radiofrequency ablation is a minimally invasive procedure that uses controlled radiofrequency energy to reduce pain signals carried by selected sensory nerves surrounding the knee.
What are genicular nerves?
Genicular nerves are sensory nerve branches around the knee that transmit pain signals from the joint and surrounding structures.
What does genicular RFA treat?
It may be considered for selected patients with chronic knee pain, particularly pain associated with knee osteoarthritis. It may also be considered in certain cases of persistent pain after knee surgery once other causes have been appropriately evaluated.
Does genicular RFA cure knee arthritis?
No. Genicular RFA does not reverse osteoarthritis, restore cartilage, or correct structural joint damage. It is designed to reduce the transmission of pain signals.
Do I need a genicular nerve block before radiofrequency ablation?
A diagnostic genicular nerve block may be used to determine whether selected nerves are contributing to the patient’s knee pain and whether RFA may be appropriate. The exact protocol depends on individual clinical circumstances.
How long does genicular radiofrequency ablation last?
Results vary. Some patients may experience meaningful pain reduction for several months or longer. Symptoms may eventually return as the treated nerves regenerate.
Can genicular RFA be repeated?
Repeat treatment may be considered if the initial procedure provided meaningful improvement and the pain later returns.
Is genicular RFA the same as a knee injection?
No. Genicular RFA targets sensory nerves surrounding the knee. A knee joint injection places medication or another injectable treatment into the joint itself.
Is genicular RFA the same as PRP?
No. Genicular RFA reduces pain transmission through selected sensory nerves. PRP uses concentrated platelets prepared from the patient’s own blood and is injected into a targeted musculoskeletal structure.
Can genicular RFA prevent knee replacement?
Genicular RFA does not repair the structural damage that may eventually require knee replacement, and it cannot guarantee that surgery will be avoided. For selected patients, it may help manage pain when surgery is not currently appropriate or is being delayed.
Can genicular RFA help after a knee replacement?
It may be considered for selected patients with persistent pain after knee replacement, but potential surgical or mechanical causes of pain should first be appropriately evaluated.
Is genicular radiofrequency ablation surgery?
No. Genicular RFA is a minimally invasive interventional procedure and does not involve replacing or surgically reconstructing the knee joint.
Find Out if Genicular Radiofrequency Ablation Is Right for You
Persistent knee pain does not always require the same treatment approach. For selected patients whose pain is transmitted through the genicular nerves, radiofrequency ablation may provide a nonsurgical option for longer-lasting pain management.
Schedule a consultation with TOPS Institute in Los Angeles or Beverly Hills to determine whether genicular radiofrequency ablation may be appropriate for your chronic knee pain.
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