Medically reviewed by Aaron Frodsham, MD, Vascular and Interventional Radiologist
Genicular artery embolization has a reputation problem, and it’s a good one: it works well enough for the right knees that people assume it works for every knee. It doesn’t.
Careful patient selection appears to be an important factor in achieving good outcomes with GAE, which is why our team evaluates every knee before recommending anything. Here’s the same checklist we use, written for you instead of for a chart.
The Short Answer
You may be a good candidate for GAE if several of the following apply:
- You’re over 40
- You have knee osteoarthritis confirmed on imaging
- Your pain is moderate to severe, a 4 or higher out of 10 on a typical day
- You’ve had symptoms for 3 to 6 months or longer
- You’ve tried conservative care (physical therapy, anti-inflammatories, injections) without lasting relief
- You want to avoid knee replacement surgery, or delay it (how GAE compares to knee replacement)
If that’s you, keep reading for the details. If several of those don’t fit, keep reading anyway, because the “why not” section matters just as much.
What We’re Actually Looking For
GAE treats one specific thing: inflammation in the lining of the knee joint, fed by abnormal blood vessels that grow in around arthritic knees. So the ideal candidate isn’t defined by how bad their X-ray looks. It’s defined by whether inflammation is a major driver of their pain.
That shows up in a few practical ways.
Pain that’s localized. You can usually point to where it hurts, most often the inner side of the knee, and pressing there is tender. That focal tenderness lines up with the areas where abnormal vessels cluster.
Pain with load. Walking, stairs, standing up from a chair, standing for long stretches. Inflammatory knee pain gets worse when the joint works.
Stiffness and swelling that come and go. Flare patterns point to inflammation, which is exactly what GAE targets.
Conservative care that helped a little, then stopped. Injections that gave you a few good weeks and then wore off are a common story in patients who do well with GAE.
Does Advanced Arthritis Rule You Out?
This is the question we get most, and the answer surprises people: not automatically.
Arthritis severity is graded on imaging, and patients with the most advanced grade often assume they’ve aged out of anything but surgery. But GAE doesn’t rebuild cartilage, so cartilage loss isn’t the deciding factor. What matters is whether the knee still has reasonable alignment and whether inflammation is present.
A knee with severe wear but preserved alignment and active inflammation can still be a candidate. A knee that’s collapsed out of alignment usually isn’t, because the pain at that point is mechanical, and reducing inflammation won’t fix a mechanical problem. That’s a determination made in the exam room and on imaging, not from a grade alone.
Who GAE Isn’t Right For
We’d rather tell you this now than after a consultation. GAE is not recommended when:
- Your knee pain is actually coming from your back. A pinched nerve in the lower spine can refer pain to the knee. GAE treats the knee, so it can’t help pain that starts somewhere else. This is one of the first things we rule out.
- You have significant peripheral artery disease. GAE works through the arteries, so compromised circulation in the legs changes the risk picture.
- Your arthritis is inflammatory rather than osteoarthritis. Rheumatoid arthritis and similar autoimmune conditions involve a different disease process.
- There’s an active infection, in the knee or elsewhere.
- You have a bleeding disorder or significant kidney disease. Both affect how safely an image-guided vascular procedure can be done.
- Your pain is primarily nerve pain, the burning, electric, numb kind, rather than joint pain.
- The knee is severely deformed. As covered above, mechanical collapse needs a mechanical solution.
- You have widespread pain conditions like fibromyalgia, where knee pain is one part of a bigger picture and a knee-only procedure is unlikely to move the needle.
None of these mean you’re out of options. They mean GAE isn’t the option, and the evaluation will point you toward what is.
What the Evaluation Involves
If you check the boxes above, the next step is a consultation, and here’s what actually happens in it.
We start with your history: how long, how bad, what you’ve tried, and what helped. We examine the knee for the tenderness patterns that point to inflammation, and we rule out the spine as a source. We review your imaging, usually weight-bearing X-rays, and in some cases an MRI to look directly at the joint lining.
Then we give you a straight answer. Sometimes that’s “you’re a strong candidate.” Sometimes it’s “let’s try one more conservative step first.” Sometimes it’s “this isn’t the right procedure for your knee, and here’s what is.” All three are good outcomes, because all three mean you’re not spending time and money on the wrong treatment.
GAE at Integrated Pain Specialists is performed by Aaron Frodsham, MD, a board-certified interventional radiologist, at our Interventional Surgical Center in West Jordan, and it’s covered by many insurance plans. Coverage varies by insurer and individual policy, and our team verifies benefits and authorization requirements before scheduling.
Find Out Where You Stand
The checklist above gets you a good guess. The consultation gets you an answer. If you’re over 40 with knee arthritis that conservative care hasn’t fixed, that’s worth an hour of your time.
Book a free consultation at our Bountiful or South Jordan clinic, and we’ll tell you honestly whether GAE is right for your knee. Not sure GAE is even the right category? Our knee pain treatment overview covers every option, from physical therapy up.
Frequently Asked Questions
What age do you need to be for GAE?
GAE is generally recommended for adults over 40 with knee osteoarthritis. Younger patients are evaluated case by case, since knee pain under 40 is more often caused by injury than by the inflammatory arthritis GAE treats.
Can I have GAE if I’ve already had knee injections?
Yes. In fact, having tried injections without lasting relief is part of the typical candidate profile. Injections that helped briefly and wore off often point to the inflammation GAE is designed to treat.
Does bone-on-bone arthritis disqualify me from GAE?
Not automatically. GAE targets inflammation rather than cartilage, so severe wear can still be a candidate if the knee’s alignment is preserved and inflammation is present. That’s determined during your evaluation.
Can GAE be done on both knees?
Each knee is evaluated on its own. If both qualify, treatment planning is discussed during your consultation.
How do I know if my knee pain is really coming from my back?
Pain that travels down the leg, changes with sitting or bending, or comes with numbness and tingling often points to the spine. Ruling this out is one of the first steps in a GAE evaluation, because GAE can’t treat pain that starts somewhere else.
