Genicular Artery Embolization

Relief from knee pain—no surgery, no hospital, back on your feet in days.

Genicular artery embolization (GAE) is a minimally invasive, outpatient treatment for knee arthritis pain. No surgery. No hospital stay. Most people are back to normal activities within days. 

65–85% of patients experience significant knee pain relief

No surgery required

Fast return to activities
 
man exercising on a stationary bike, staying active as an alternative to knee replacement

60-75%

less knee pain reported in studies

72%

still finding relief at 24 months

Same Day

outpatient — home the same day

Knee pain has no age. Does this sound like you?

If knee arthritis or chronic pain is changing how you live — not just how you feel — GAE may be worth a conversation. Most of the people we help are dealing with:

Pain on stairs & walking

Stiffness and swelling that limit what you can do in a day

Being told you’re not a good candidate for surgery

Injections, physical therapy, or pain medication that stopped working — or never worked well

A desire to avoid or delay knee replacement

A desire to avoid or delay knee replacement

active older couple hiking outdoors after genicular artery embolization for knee pain

Why people choose GAE

  • Minimally invasive. A tiny puncture instead of an incision, so there’s far less to recover from. 
  • Outpatient and fast. The procedure takes about an hour and you go home the same day. 
  • Treats the source. It calms the inflammation driving your pain rather than just masking it. 
  • Keeps your natural knee. Nothing in the joint is cut, altered, or replaced. 
  • Quick recovery. Most people are back to everyday activities within days, not weeks. 
  • Lasting relief. In clinical studies, pain relief has lasted a year or more, and the procedure can be repeated if needed.
  • A real option when surgery isn’t. It can help people who’ve run out of other options or can’t safely have a knee replacement. 

The Procedure

How GAE works

Knee arthritis pain is driven, in part, by abnormal blood vessels feeding the inflamed lining of the joint. GAE targets that inflammation at its source — without touching the joint itself.

Step 01

Access

Through a tiny puncture in the wrist or upper thigh, a board-certified interventional radiologist guides a thin catheter to the arteries feeding your knee.

Step 02

Embolization

Microscopic particles gently reduce the excess blood flow that fuels the inflammation.

Step 03

Relief

As the inflammation settles over the following weeks, pain eases and movement gets easier. No incision, no hardware, no replacing the joint.

compare your options

GAE vs. Knee Replacement

GAE
Knee Replacement

Surgery

No

Yes

Anesthesia 

Local + light sedation 

General or spinal

Hospital stay 

Home the same day 

Often 1–3 days

Recovery

Days

Weeks to months

Your natural knee 

Preserved

Replaced

Best suited for

Delaying or avoiding replacement; poor surgical candidates 

Advanced, end-stage arthritis 

Individual results and candidacy vary. Your physician will review whether GAE is appropriate for you.

Backed by Research

GAE is supported by prospective clinical trials, including two-year outcome data. Two numbers get quoted, and they measure different things:

The procedure is completed successfully in about 95–100% of cases—the radiologist reaches and treats the small vessels feeding the inflamed knee lining.

65–85% of patients go on to experience significant pain relief—typically a 50% or greater reduction in pain—along with better movement.

We lead with the second number because it’s the one that matters to you: whether your knee actually feels better. Our interventional radiologists will walk you through what the evidence means for your situation.

Insurance & Cost

Coverage for GAE varies by plan. Our team verifies your benefits and explains any cost clearly before you decide anything — no surprises.

What our Patients are Saying

patient smiling after varicose vein removal at rvi

Highly recommended, Dr. Ermentrout is an exceptional patient advocate and fibroid expert. His extensive experience ensures top-tier results. Knowledgeable and professional, he delivers best-in-class care while educating his staff. An awesome doctor to work with!

Toni W

Dr. Ermentrout is a wonderful physician with excellent bedside manner. He was very thorough in explaining the steps of the UFE procedure and is a highly knowledgeable interventional radiologist. 5 stars!

Sharonda C

Dr. Ermentrout was very informative, soft spoken and understanding. I didn’t feel rushed and he was willing to answer any questions I had. It was very easy to speak with him. I feel super comfortable and well informed.

Gail K

Highly recommended, Dr. Ermentrout is an exceptional patient advocate and fibroid expert. His extensive experience ensures top-tier results. Knowledgeable and professional, he delivers best-in-class care while educating his staff. An awesome doctor to work with!

Toni W

Frequently Asked Questions…

Am I a candidate for GAE?
Does it hurt?
How soon will I feel better?
How long does it last?
Will I still need a knee replacement?
Who preferoms it?

Find out if GAE is right for your knees.

Book a free consultation and our team will review your history, your imaging, and your options — no pressure, no obligation.

Covered by most major insurance plans

Convenient, private care in Novi, M

Answers before you consider surgery