Significant knee pain, but not ready for knee replacement?
If knee osteoarthritis is causing significant pain but you are not ready for, or may not yet need, a total knee replacement, genicular artery embolization (GAE) may be an option worth discussing with your physician.
GAE is a minimally invasive procedure designed to reduce abnormal blood flow associated with inflammation in an arthritic knee. Unlike knee replacement surgery, it does not remove or replace the joint.
For appropriately selected patients, this can mean a shorter recovery period and a quicker return to normal daily activities.
What is genicular artery embolization?
Genicular artery embolization is a minimally invasive procedure performed by an interventional radiologist.
During the procedure, a small catheter is guided through an artery to blood vessels supplying areas of inflammation around the knee. Tiny embolic particles are then delivered to reduce excessive blood flow associated with the inflammatory process.
The goal is to reduce osteoarthritis-related knee pain and improve function without replacing the knee joint.
GAE is generally performed as an outpatient procedure, allowing many patients to return home the same day.
How does GAE compare with knee replacement?
The biggest differences involve the type of procedure, recovery, and the patients each treatment is intended to help.
Genicular Artery Embolization
GAE may offer several advantages for appropriately selected patients:
- Minimally invasive treatment
- Usually performed as an outpatient procedure
- No surgical replacement of the knee joint
- Smaller access site rather than a large surgical incision
- Typically less post-procedure rehabilitation than joint replacement
- Many patients can resume routine activities relatively quickly
- May be considered when conservative treatments have not provided enough relief but joint replacement is not yet appropriate
Some soreness or discomfort can occur following the procedure, and individual recovery times vary.
Total Knee Replacement
Total knee replacement is a major orthopedic procedure in which damaged portions of the knee joint are removed and replaced with artificial components.
It can be an effective treatment for advanced arthritis and severe joint damage, but recovery is more involved. Patients commonly require physical therapy and rehabilitation as strength, movement, and function return.
Knee replacement may be performed in a hospital or outpatient surgical setting depending on the patient and treatment plan.
Who may be a candidate for genicular artery embolization?
GAE may be considered for certain patients with symptomatic knee osteoarthritis, particularly when pain is interfering with everyday life and conservative treatments have not provided adequate relief.
A patient may be evaluated for GAE when:
- Knee pain is related to osteoarthritis
- Medication, physical therapy, injections, or other conservative treatments have not provided sufficient relief
- The patient wants to explore a minimally invasive treatment
- Knee replacement is not yet considered appropriate
- Surgery presents additional concerns because of health, recovery, work, or lifestyle considerations
Imaging and clinical evaluation are important because not all types of knee pain can be treated with embolization.
Can GAE help delay knee replacement?
For some patients, GAE may provide meaningful pain relief without immediately moving to joint replacement surgery.
That does not mean GAE replaces knee replacement in patients with severe structural joint damage.
Instead, it may provide another treatment option for patients who fall between conservative care and major surgery.
If the structures of the knee remain relatively well-preserved but osteoarthritis-related inflammation is causing significant pain, an interventional radiologist and an orthopedic specialist can help determine whether GAE is reasonable to consider.
Recovery after GAE vs. knee replacement
One reason patients explore GAE is its relatively limited recovery period. Because the knee joint itself is not surgically removed or replaced, patients generally do not face the same rehabilitation process associated with total knee replacement.
After GAE, patients may experience temporary soreness, bruising, or discomfort. Activity recommendations vary, so patients should follow their physician’s specific post-procedure instructions.
Following knee replacement, rehabilitation and physical therapy are important parts of restoring movement, strength, and function. Recovery varies considerably between patients and may continue for weeks or months.
Is genicular artery embolization effective?
Clinical research suggests that GAE can reduce pain and improve function in some patients with knee osteoarthritis.
However, GAE is a developing treatment, and research continues to determine which patients benefit most, how long improvement lasts, and how outcomes compare with other osteoarthritis treatments.
Patients should discuss the potential benefits, limitations, risks, and available alternatives with a qualified physician before deciding whether GAE is appropriate.
Find out whether GAE is right for your knee pain
Living with chronic knee pain does not necessarily mean that joint replacement is your only next step.
If conservative treatments have stopped providing relief, or you have been told that you are not yet ready for knee replacement, genicular artery embolization may be worth discussing with an experienced interventional radiologist.
Schedule a consultation to learn whether GAE may be appropriate for your knee pain.