Knee Gel Injections: Can They Help Arthritis Pain?

Yes, knee gel injections can ease arthritis pain and reduce stiffness by improving lubrication inside the joint. Doctors often recommend them when medications or cortisone shots no longer provide enough relief. These FDA-approved injections offer a nonsurgical option to improve mobility and may delay knee replacement for some patients.

At Total Orthopedics and Sports Medicine, our doctors focus on treating arthritis pain that hasn’t been relieved by traditional treatments like medications or cortisone injections. We offer knee gel injections to provide a non-surgical solution to reduce pain, restore mobility, and improve joint function. Call 855-321-6784 to schedule your consultation and explore how this advanced treatment can help you manage arthritis pain more effectively.

How Do Knee Gel Injections Treat Arthritis Symptoms?

Hyaluronic acid in knee gel injections acts as a natural lubricant inside the joint. It adds cushioning between the joint surfaces, which reduces friction and supports smoother knee movement. As joint movement improves, you may feel relief from pain and stiffness during daily activities.

As the treatment takes effect, relief usually develops gradually. You may need about four to six weeks to experience the full benefits of knee gel injections. For some patients, the benefits can last 6 to 12 months, although the duration varies based on arthritis severity and individual response. These injections focus on symptom relief rather than reversing existing cartilage damage.

Gel injections may also postpone the need for knee replacement in some patients with knee osteoarthritis. A meta-analysis published in the Journal of Clinical Medicine found an association between hyaluronic acid injections and a delay of approximately 9.8 months before knee replacement surgery. However, your results may vary depending on joint damage, prior treatments, and your response to the injections.

Who Can Benefit from Knee Gel Injections for Arthritis?

Knee gel injections are recommended for individuals with mild to moderate arthritis who still have cushioning between the bones. They’re especially helpful when medications, steroid injections, or therapy are no longer effective, but the arthritis isn’t severe enough to require knee replacement. These injections can decrease pain and support joint function, helping you stay active without surgery. Doctors may recommend knee gel injections if you experience any of the following symptoms:

• Knee pain worsens with movement but improves with rest
• Stiffness or swelling occurs during daily activities
• Grinding, clicking, or catching sensations occur in your knee.

However, knee gel injections do not cure osteoarthritis, and treatment results depend on factors such as your age, weight, activity level, and degree of joint damage. Your previous treatments and overall knee function can also affect the outcome. While some patients experience relief for several months, others may need repeat injections sooner.

For this reason, you should consult our doctor to determine whether knee gel injections are suitable for your condition. We assess your symptoms, arthritis severity, and treatment history before recommending gel injections. Based on this evaluation, we can recommend suitable treatment options to reduce arthritis pain and improve knee function.

How Much Do Knee Gel Injections Cost?

Without insurance, a single knee gel injection can cost about $400 to $1,000. A full series of injections may cost around $1,200 to $3,000, depending on the treatment schedule. Your final cost can vary based on the hyaluronic acid product, the number of injections, the facility, and your insurance coverage.

Most major health insurance plans and Medicare may cover knee gel injections when they meet medical necessity requirements for knee osteoarthritis. However, coverage varies based on your specific health plan and its benefits. Before treatment, you should contact your insurer to confirm your coverage and expected out-of-pocket costs.

Your insurer may consider the following requirements before approving treatment:

• Medical Necessity: Your insurer may require a confirmed diagnosis of knee osteoarthritis.
• Previous Treatments: Some plans require prior conservative treatments before they approve gel injections.
• Covered Products: Your plan may cover only certain hyaluronic acid products or brands.
• Repeat Injections: Coverage for another treatment series may require an interval of about six months when eligibility criteria are met.
• Prior Authorization: Your insurer may require approval before your doctor provides the injection.
• Experimental Treatments: Your plan may deny treatments that fall outside its established coverage criteria.

What Is the Procedure for Receiving Gel Injections?

Knee gel injections involve injecting hyaluronic acid directly into the knee joint to relieve arthritis pain. The procedure usually takes less than 15 minutes. Your doctor will clean and numb the injection site before using a thin needle to inject the gel into the joint space. Most patients feel only slight pressure during the injection and can walk shortly after the procedure.

After the injection, your doctor will likely advise resting the joint for 24 to 48 hours. This will help reduce inflammation and give the gel time to settle. It’s normal to experience some mild swelling or stiffness during this period. Applying ice and taking over-the-counter pain relievers can ease these symptoms. However, if pain worsens or persists, contact your doctor for guidance.

What Is the Success Rate of Gel Shots for Knee Arthritis?

Knee gel injections can provide relief for 30–60% of patients, especially those with mild to moderate knee arthritis. However, in patients with more advanced arthritis or severe joint damage, the results may be less effective and provide only limited relief.

However, clinical studies show varying results. For example, one study found that 60% of patients experienced noticeable pain relief and improved mobility after receiving hyaluronic acid injections. On the other hand, some studies have shown that the results of hyaluronic acid injections are sometimes similar to those of a placebo, offering limited benefit in certain patients.

Are There Any Side Effects of Knee Gel Injections?

You may experience temporary swelling, redness, soreness, or mild joint pain at the injection site. These symptoms usually improve within one to two days. In rare cases, hyaluronic acid injections can cause an allergic reaction or joint infection. If you develop increased pain or your symptoms do not improve, contact your doctor for further evaluation.

Here are some other possible side effects:

• Joint stiffness or tightness after the injection
• Mild fluid buildup inside the knee (effusion)
• Inflammatory reaction if injected too soon after a steroid shot
• Increased discomfort for 1–2 days before relief begins
• Bleeding inside the joint (rare, especially for those on blood thinners)
• Crystal-induced arthritis flare-up (extremely rare)

Moreover, a 2025 review published in Orthopedics found pseudoseptic reaction rates ranging from 0% to 5.6% per injection. Most treatment groups reported rates of 2% or less. Another large PubMed study of 748,428 patients found inflammation or infection rates of only 0.001% to 0.002% within three days after knee hyaluronic acid injections. While these side effects are uncommon, if you notice worsening pain, fever, or unusual swelling, contact your doctor right away.

At Total Orthopedics and Sports Medicine, we provide trusted care and FDA-approved gel injections to manage knee arthritis safely. Our team will discuss the potential benefits and risks of gel injections based on your symptoms, joint damage, and medical history. Book your appointment today to get the right treatment.

What Are the Alternatives to Gel Injections for Arthritis Pain?

Cortisone injections, anti-inflammatory medications, and platelet-rich plasma (PRP) therapy can reduce knee arthritis symptoms. If these treatments do not provide enough relief, your doctor may also recommend radiofrequency ablation, nerve blocks, or arthroscopy for specific knee problems. For advanced arthritis, your doctor may recommend knee replacement surgery when joint damage causes ongoing pain.

Each treatment addresses knee arthritis symptoms in a different way. The right option depends on your arthritis severity, symptoms, treatment history, and goals. In fact, the American Academy of Orthopaedic Surgeons (AAOS) does not recommend hyaluronic acid injections for routine use in symptomatic knee osteoarthritis. For this reason, your doctor may recommend other treatments when gel injections do not provide enough relief.

Here is how these alternatives can reduce arthritis pain and improve knee function:

Anti-Inflammatory Medications

Anti-inflammatory medications can reduce knee pain and inflammation caused by osteoarthritis. Your doctor may recommend oral or topical NSAIDs based on your symptoms and medical history. Topical NSAIDs, such as diclofenac gel, deliver medication directly to the painful knee. This option may suit patients who cannot take oral NSAIDs or need targeted pain relief. In fact, a study published in BMC Musculoskeletal Disorders found that topical diclofenac gel improved pain and joint function with a low rate of side effects.

Radiofrequency Ablation (RFA)

Radiofrequency ablation is a minimally invasive procedure that uses heat to disable pain-signaling nerves around the knee. It’s typically recommended when other treatments have failed or when surgery is not an option. According to Pain Physician, RFA provided significant pain relief in patients with chronic knee arthritis for up to 6 months.

Arthroscopy

In some cases, knee arthroscopy may treat specific knee problems that occur along with arthritis. Your doctor may recommend it to remove loose cartilage, inflamed tissue, or certain bone spurs. The procedure may be more suitable when symptoms such as knee catching or locking affect joint movement. However, its ability to provide long-term relief of arthritis pain varies among patients.

Cortisone Injections

Cortisone injections reduce inflammation in the knee joint and can provide short-term relief from arthritis pain. Pain relief often begins within one to three days after the injection. Your doctor may recommend these injections when pain and swelling interfere with daily activities. Depending on your condition, repeat injections may occur about every three to four months. However, if a cortisone shot makes your pain worse, your doctor can evaluate your symptoms before another injection.

Nerve Block Injections

Genicular nerve blocks target specific nerves that send pain signals from the knee to the brain. Your doctor may recommend these injections if surgery is not suitable for your condition. The injection can also show whether the targeted nerves contribute to your knee pain. Based on your response, your doctor may recommend radiofrequency ablation for longer-lasting relief.

Platelet-Rich Plasma (PRP) Injections

During PRP treatment, your doctor uses concentrated platelets from your own blood to treat knee osteoarthritis pain. These platelets contain growth factors that may support the body’s natural repair response and improve joint function. Moreover, a 2026 study published in International Orthopaedics found that PRP improved pain and knee function more than hyaluronic acid, corticosteroids, and saline at six months.

Get Guidance on Knee Gel Injections from Experienced Doctors at Total Orthopedics & Sports Medicine — Schedule Your Visit Now!

Knee arthritis often causes persistent pain, stiffness, and reduced flexibility that can gradually affect your body’s function. Even simple movements like standing, walking short distances, or bending the knee can gradually become uncomfortable. If symptoms persist, an orthopedic evaluation can help you determine appropriate treatment options.

At Total Orthopedics and Sports Medicine, we provide FDA-approved knee gel injections to ease pain and improve joint movement without surgery. Our experienced team evaluates your arthritis symptoms and joint damage before recommending treatment. We can combine gel injections with other medical therapies to improve pain relief, tailored to your symptoms. Call 855-321-6784 or visit our clinics in Syosset, Massapequa, Deer Park, or East Meadow for personalized treatment.

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