Hyaluronic Acid Gel Injections Explained

close up of Hyaluronic Acid Gel Injections

If you’ve been dealing with persistent joint pain—especially from arthritis—you’ve probably heard of hyaluronic acid gel injections. Simply put, these are treatments where a gel-like form of hyaluronic acid is injected directly into a joint to help improve movement and reduce discomfort.

They’re most commonly used in orthopedics for osteoarthritis, particularly in the knee, but they can also help with pain in the hip, shoulder, or other joints. By restoring some of the cushioning and lubrication your joints naturally have, they can make everyday activities like walking, climbing stairs, or exercising far more comfortable.

Over the last decade, these injections have been gaining popularity as a minimally invasive alternative to surgery. For many people, they offer an effective way to manage pain, delay the need for joint replacement, and get back to an active lifestyle—without lengthy recovery times.

What Is Hyaluronic Acid?

A Naturally Occurring Joint Lubricant

Hyaluronic acid is a substance your body naturally produces. It’s found in many areas, but it plays a crucial role in your synovial fluid—the thick, slippery liquid that surrounds and cushions your joints.

The Role in Joint Health

In healthy joints, hyaluronic acid helps absorb shock, reduce friction, and keep movement smooth. It works like oil in an engine—without it, things start to grind, wear down, and hurt.

What Happens With Age or Injury

Unfortunately, the amount and quality of hyaluronic acid in your joints can decrease over time, especially if you have arthritis or have suffered joint injuries. When that happens, your joints can become stiff, inflamed, and painful—making movement more difficult.

How Hyaluronic Acid Gel Injections Work

The Injection Process

The procedure involves injecting a gel-like form of hyaluronic acid directly into the affected joint. In many cases, doctors use imaging guidance—like ultrasound—to ensure precise placement.

Supplementing the Body’s Natural Fluid

This process is known as viscosupplementation, meaning it “supplements” the existing joint fluid. By adding more cushioning and lubrication, the injection helps reduce friction between bones and improve the joint’s ability to move comfortably.

Immediate vs. Long-Term Effects

Some people notice relief within a few days, while for others, it can take several weeks to feel the full benefits. The improvement often lasts for several months, and in some cases, up to a year. Over time, the reduced pain and better mobility can make it easier to stay active—helping protect joint health in the long run.

Medical Conditions Treated With Hyaluronic Acid Gel Injections

Osteoarthritis in the Knee (Most Common)

Knee osteoarthritis is the top reason people receive hyaluronic acid gel injections. The treatment helps restore lost lubrication in the joint, reducing pain and making everyday movements—like walking or standing up—more comfortable.

Shoulder, Hip, and Ankle Arthritis

While the knee is the most common site, these injections can also help relieve pain in other major joints. Whether it’s a stiff shoulder, arthritic hip, or worn-down ankle joint, the added cushioning can improve movement and reduce discomfort.

Post-Injury Cartilage Damage

If you’ve had a sports injury or accident that damaged the cartilage in your joint, hyaluronic acid gel can help fill the gap in lubrication while the joint heals or adapts.

Joint Stiffness and Reduced Range of Motion

These injections can also be used for joints that feel “locked up” or have lost flexibility over time, making it easier to bend, stretch, and move without pain.

Benefits of Hyaluronic Acid Gel Injections

Reduces Pain and Stiffness

By improving joint lubrication, these injections help decrease friction between bones, easing pain and stiffness.

Improves Mobility and Quality of Life

Better cushioning often means you can move more freely—whether that’s walking, climbing stairs, or getting back into hobbies you’ve avoided.

May Delay or Reduce the Need for Surgery

For some patients, hyaluronic acid injections can provide enough relief to postpone—or even avoid—joint replacement surgery.

Low Risk of Systemic Side Effects

Unlike oral pain medications that circulate through your whole body, these injections work locally in the joint, lowering the risk of systemic side effects.

The Procedure – What to Expect

Pre-Procedure Evaluation

Your provider will assess your joint health, review your medical history, and confirm you’re a good candidate for the treatment.

How the Injection Is Administered

The gel is injected directly into the joint. In many clinics, ultrasound guidance is used to ensure accurate placement.

Number of Injections Needed

Some treatments involve a single injection, while others are given as a series over several weeks. Your provider will recommend what’s best for your situation.

Recovery and Activity Guidelines

Most people can return to normal activities the same day, but heavy exercise is often avoided for 24–48 hours to give the joint time to settle.

Are Hyaluronic Acid Gel Injections Safe?

Common Mild Side Effects

You might experience temporary swelling, redness, or soreness at the injection site. These usually resolve within a couple of days.

Rare Complications

Though uncommon, infection, allergic reactions, or joint inflammation can occur. Your provider will discuss signs to watch for and how to address them.

Importance of an Experienced Provider

Proper technique matters. An experienced pain management specialist or orthopedic doctor will know how to inject the gel safely and effectively.

How Long Do Hyaluronic Acid Gel Injections Last?

Typical Duration of Relief

Pain relief usually lasts anywhere from 3 to 12 months, depending on the severity of the arthritis and the patient’s activity level.

Factors Affecting Duration

Your overall joint health, lifestyle, and how advanced your condition is will all influence how long the benefits last.

When and How Treatments Can Be Repeated

If pain returns, injections can typically be repeated after several months, following your doctor’s recommendations.

Hyaluronic Acid vs. Other Joint Injections

Differences in How They Work

Hyaluronic acid gel injections work by adding cushioning and lubrication to the joint, improving movement and reducing friction. Corticosteroid injections, on the other hand, target inflammation, offering faster but often shorter-lasting relief. PRP (platelet-rich plasma) therapy uses components from your own blood to stimulate healing in damaged tissue.

Which Situations Favor One Over the Other

  • Hyaluronic acid is often preferred for long-term lubrication in cases of osteoarthritis.
  • Corticosteroids are a good choice when inflammation is severe and rapid pain relief is needed.
  • PRP therapy may be recommended for joint injuries or early arthritis in younger, active patients.

Potential for Combination Therapy

In some cases, doctors may combine different injection types—like using corticosteroids first to calm inflammation, then hyaluronic acid for long-term joint support.

Who Is a Good Candidate for Hyaluronic Acid Gel Injections?

Ideal Patient Profile

People with mild to moderate osteoarthritis or joint stiffness who haven’t found enough relief from oral medications or physical therapy often benefit most.

Who May Not Be a Good Candidate

Those with advanced arthritis where the joint is severely damaged may not get significant results. Patients with active infections or certain allergies may also be advised against the treatment.

When to Try Injections Before Surgery

If your pain is limiting your daily activities but you’re not ready—or medically able—for joint replacement surgery, hyaluronic acid injections can be a great middle ground.

Final Thoughts – Are Hyaluronic Acid Gel Injections Worth It?

Hyaluronic acid gel injections can be a game-changer for many people dealing with joint pain. They offer targeted relief, improve mobility, and may help delay or avoid surgery. While they aren’t a cure and results vary, the low risk of side effects and potential for long-lasting benefits make them worth discussing with your doctor.

If joint pain is slowing you down, a pain management specialist can evaluate whether this treatment fits into your overall care plan—so you can move with less pain and more confidence.

Picture of Dr. Shane Huch, DO | Board-Certified Pain Management Specialist & Section Chief at Riverview Medical Center

Dr. Shane Huch, DO | Board-Certified Pain Management Specialist & Section Chief at Riverview Medical Center

Dr. Shane Huch, DO, is a board-certified anesthesiologist and pain management specialist fellowship-trained in Interventional Pain Management at Dartmouth. As Section Chief of Pain Management at Riverview Medical Center and former Physician of the Year at Bayshore Medical Center, he’s recognized for his patient-first philosophy and expertise in minimally invasive, regenerative treatments. A graduate of the Philadelphia College of Osteopathic Medicine with training at Montefiore and Dartmouth-Hitchcock, Dr. Huch brings over a decade of experience helping patients achieve lasting relief from chronic pain.

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