Summary

Knee osteoarthritis develops when the cartilage cushioning your knee joint gradually wears down, leading to pain, stiffness and reduced mobility that often gets worse over time if left untreated. Most patients have several non-surgical options available before knee replacement ever needs to be on the table, including physical therapy, weight management, targeted injections and genicular artery embolization (GAE), a minimally invasive procedure that treats the abnormal blood vessels driving chronic knee pain. At Atlanta Medical Clinic, treatment starts with an accurate diagnosis and is built around avoiding unnecessary surgery whenever possible.

If your knee has been aching for months, or years, you’re far from alone. Knee osteoarthritis is one of the most common reasons Atlanta patients end up searching for a knee specialist, and it’s also one of the most misunderstood. Many patients assume surgery is inevitable once arthritis sets in. In most cases, it isn’t. This guide covers what knee osteoarthritis actually is, what causes it, how it’s diagnosed, and the full range of treatment options available today, including GAE, a newer procedure that’s changing what non-surgical knee pain relief can look like.

What Is Knee Osteoarthritis?

Osteoarthritis is the most common form of arthritis affecting the knee, and understanding what’s actually happening inside the joint is the first step toward treating it effectively.

How Cartilage Breaks Down Over Time

Healthy cartilage acts as a cushion between the bones of the knee joint, allowing smooth, pain-free movement. Osteoarthritis develops as that cartilage gradually breaks down, thinning and roughening until bones begin to move against each other with less protection. This process typically happens slowly, over years, which is part of why many patients don’t recognize what’s happening until symptoms are already fairly advanced.

Primary vs. Secondary Osteoarthritis: What’s the Difference

Primary osteoarthritis develops gradually through age-related wear with no clear underlying cause, while secondary osteoarthritis results from an identifiable factor like a previous injury, joint deformity or another medical condition that accelerated cartilage breakdown. Knowing which type you’re dealing with can help guide the most effective treatment path.

How Common Is Knee Osteoarthritis and Who Is Most at Risk

Knee osteoarthritis affects a significant share of adults over 50, and risk climbs with age, excess body weight, prior joint injury and family history. It’s also increasingly common in younger patients, particularly those with a history of sports injuries or physically demanding work.

What Causes Chronic Knee Pain?

Chronic knee pain rarely comes from a single factor. It’s usually the result of several contributing causes working together over time.

Age and Wear and Tear

Cartilage naturally loses some of its resilience and ability to repair itself as we age, which is why osteoarthritis becomes more common with each passing decade.

Previous Injuries and Overuse

A prior ACL tear, meniscus injury or repeated joint stress from high-impact activity can accelerate cartilage breakdown well before age would otherwise cause it, sometimes leading to osteoarthritis decades earlier than expected.

Weight, Genetics, and Other Contributing Factors

Extra body weight places significant added pressure on the knee joint with every step, and genetics can influence cartilage quality and joint alignment in ways that increase risk independent of lifestyle.

Why Knee Pain When Walking Is One of the Most Common Early Signals

Pain that shows up specifically during walking, especially on stairs or uneven ground, is often one of the earliest signs that cartilage is beginning to wear. Patients frequently dismiss this as normal aging rather than recognizing it as an early warning sign worth addressing.

Recognizing the Symptoms of Knee Osteoarthritis

Osteoarthritis symptoms tend to build gradually, which makes them easy to overlook until they start interfering with daily life.

Pain, Stiffness, and Swelling

The hallmark symptoms of knee osteoarthritis include aching pain during or after movement, stiffness that’s often worse first thing in the morning or after sitting for a while, and swelling around the joint following activity.

Reduced Range of Motion and Difficulty with Daily Activities

As cartilage continues to wear, many patients notice they can no longer fully bend or straighten the knee comfortably, and everyday tasks like climbing stairs, kneeling or getting up from a chair become increasingly difficult.

The Stages of Knee Osteoarthritis: Mild, Moderate, and Severe

In mild osteoarthritis, cartilage shows early signs of wear with occasional discomfort. Moderate osteoarthritis brings more consistent pain, visible joint space narrowing on imaging, and noticeable stiffness. Severe osteoarthritis involves substantial cartilage loss, often with bone-on-bone contact, significant pain and major mobility limitations.

When to Stop Waiting and See a Knee Specialist

If knee pain has lasted more than a few weeks, is limiting your daily activities, or is getting progressively worse rather than better, it’s time to see a knee specialist rather than continuing to manage it on your own.

How Knee Osteoarthritis Is Diagnosed

An accurate diagnosis is what determines which treatment options actually make sense for your specific knee.

Physical Examination and Patient History

Diagnosis typically starts with a physical exam to assess swelling, range of motion and joint stability, along with a detailed history covering when symptoms started, what makes them better or worse, and any relevant past injuries.

Imaging: X-Rays and What They Reveal

X-rays can show joint space narrowing, bone spurs and other structural changes associated with osteoarthritis, giving your provider a clearer picture of how advanced the condition has become.

Why an Accurate Diagnosis Changes Your Treatment Options

Confirming the stage and underlying cause of your knee pain directly shapes which treatments are appropriate. A patient with mild, early-stage osteoarthritis has very different options available than one with advanced, bone-on-bone disease, which is why skipping a proper workup can lead patients toward treatments that aren’t actually the best fit.

Non-Surgical Knee Pain Treatment Options

For most patients, surgery isn’t the first, or even the necessary, step. A range of non-surgical treatments can meaningfully reduce pain and improve function.

Physical Therapy and Exercise

Targeted exercise strengthens the muscles supporting the knee joint, which can reduce pain and improve stability even when cartilage damage itself can’t be reversed.

Weight Management and Lifestyle Changes

Losing even a modest amount of weight can significantly reduce the load placed on the knee joint with every step, often translating into a meaningful reduction in pain.

Anti-Inflammatory Medications and Injections

Anti-inflammatory medications and joint injections, including hyaluronic acid injections that help restore joint lubrication, can reduce pain and inflammation for months at a time without surgery.

Chiropractic Care and Soft Tissue Therapy

Chiropractic adjustments and soft tissue therapy can help address alignment and movement patterns elsewhere in the body that may be placing additional strain on the knee joint.

What Is Genicular Artery Embolization (GAE)?

For patients who haven’t found lasting relief through more conservative treatments, GAE offers a minimally invasive option that targets a driver of knee pain many patients have never heard of.

How GAE Works to Relieve Knee Pain

GAE works by blocking abnormal, newly formed blood vessels, called neovessels, that develop around an arthritic knee joint and contribute to chronic inflammation and pain. Using a catheter guided through the blood vessels, a physician delivers tiny particles that block these vessels, reducing blood flow to the inflamed lining of the joint.

Who Is a Good Candidate for GAE

GAE is generally considered for patients with moderate knee osteoarthritis who haven’t found sufficient relief from physical therapy, medication or injections, but who want to avoid or delay knee replacement surgery.

What to Expect During and After the Procedure

GAE is performed on an outpatient basis using only local anesthesia and a small catheter insertion point, typically in the wrist or groin. Most patients go home the same day and can return to normal activities within a day or two, a significantly shorter recovery than knee replacement surgery requires.

How GAE Compares to Knee Replacement Surgery

Unlike knee replacement, GAE doesn’t involve removing or replacing any part of the joint. It targets the inflammatory process driving pain rather than the joint structure itself, which means a far less invasive procedure with a much faster recovery, though it isn’t a fit for every patient or every stage of osteoarthritis.

GAE Results: What the Research Shows

Clinical studies on GAE have shown meaningful, lasting reductions in knee pain and improved function for a majority of appropriately selected patients, with many maintaining significant relief well beyond the first year following treatment.

When Is Knee Replacement Surgery Considered?

Surgery still has a role for some patients, but it’s rarely where treatment should start.

Why Most Atlanta Patients Want to Avoid Surgery

Knee replacement involves a significant recovery period, real surgical risk, and in a meaningful percentage of cases, doesn’t fully resolve a patient’s pain. It’s understandable that most patients want to exhaust reasonable alternatives first.

What Happens When Conservative Treatments Fail

When physical therapy, medication and injections no longer provide adequate relief, and imaging confirms advanced joint damage, surgery may become the most appropriate remaining option for restoring function.

How GAE Can Delay or Replace the Need for Surgery

For many patients with moderate osteoarthritis, GAE offers a way to significantly reduce pain and improve function without surgery, potentially delaying or entirely avoiding the need for knee replacement.

Frequently Asked Questions About Knee Osteoarthritis and GAE

Is GAE painful? Most patients experience only mild discomfort during the procedure itself, since it’s performed under local anesthesia through a small catheter insertion point. Some mild soreness in the days following treatment is common and typically resolves quickly.

How long does relief from GAE last? Many patients experience significant pain relief lasting a year or more, with some maintaining benefits well beyond that. Results vary by patient, which is why an individualized evaluation matters.

Can I still get knee replacement after GAE? Yes. GAE doesn’t alter the joint structure itself, so knee replacement remains an option later if it’s ever needed.

Is knee osteoarthritis reversible? Cartilage damage from osteoarthritis can’t be fully reversed, but treatment can significantly reduce pain, slow progression and improve function, which is why early evaluation matters.

How do I know if my knee pain is osteoarthritis? Persistent pain, stiffness and swelling that build gradually over time, particularly with walking or after periods of rest, are common signs. A physical exam and imaging can confirm a diagnosis.

Knee Pain Treatment at Atlanta Medical Clinic

Chronic knee pain doesn’t have to mean an inevitable path to surgery. At Atlanta Medical Clinic, treatment starts with understanding exactly what’s driving your pain, then building a plan around the least invasive option that can get you real, lasting relief, including GAE for patients who qualify. Schedule a consultation today to find out which treatment path is right for your knee.