Viscosupplementation is an injection of hyaluronic acid, a gel-like substance that is naturally present in the fluid of a healthy knee. In knee arthritis this joint fluid reduces, so the injection tops it up to lubricate and cushion the joint. It is used mainly for grade 2 and grade 3 osteoarthritis, and in people who respond, pain and swelling often ease for about six months to a year. It does not regrow worn cartilage, and results vary from person to person.
In this short video, Dr. Sushil Sharma, senior orthopaedic and knee replacement surgeon in Noida with more than 38 years of experience, explains what viscosupplementation is, how it works and which knees it suits.
Dr. Sushil Sharma on viscosupplementation (Hindi, 48 sec). Watch on YouTube. Full transcript further down.
Does your knee pain sound like this?
Viscosupplementation is meant for knees that are wearing out but are not yet "bone on bone". That stage often looks like this:
- Your knee feels stiff and creaky for the first few steps in the morning or after sitting.
- Climbing stairs at home, or the steps at the metro, makes your knee ache.
- Sitting cross-legged on the floor or using an Indian-style toilet has become difficult.
- Your knee swells or feels heavy in the evening after a long day on your feet.
- Your morning walk has become shorter because the knee starts to hurt.
- Painkillers and physiotherapy helped for a while, but the pain keeps coming back.
If this sounds familiar, your knee may still be at a stage where it can be helped without replacement. An X-ray and examination show whether an injection makes sense for you.
Is your knee at grade 2 or grade 3? A consultation with Dr. Sushil Sharma, including a review of your standing X-ray, tells you the stage of your arthritis and whether viscosupplementation is likely to help.
What Dr. Sharma says about viscosupplementation
A healthy knee is filled with a small amount of synovial fluid, which keeps the joint surfaces gliding smoothly. Hyaluronic acid is what makes this fluid thick and slippery. In the video, Dr. Sharma explains it simply:
"Hyaluronic acid is already found in the synovial fluid of the knee. But when arthritis develops, this fluid reduces. In that situation we put it in from outside. This lubricates and cushions the knee, the pain and swelling reduce, and the knee is better for at least six months to a year. Viscosupplementation usually works in grade 2 and grade 3 arthritis."
Doctors grade knee arthritis from 1 to 4 on a standing X-ray. The highlighted rows are where viscosupplementation is usually considered.
| Grade | What the X-ray shows | Role of viscosupplementation |
|---|---|---|
| Grade 1 | Very early changes, joint space normal | Usually not needed; exercise, weight control and physiotherapy come first |
| Grade 2 | Small bone spurs, joint space starting to narrow | Often considered if pain persists despite physiotherapy and lifestyle changes |
| Grade 3 | Clear narrowing, several bone spurs | Often considered, alongside exercise; other knee preservation options are also weighed |
| Grade 4 | Severe narrowing, "bone on bone" | Usually helps little; knee replacement is often the more reliable answer |
Pain does not always match the X-ray, which is why Dr. Sharma examines the knee as well as the scan before suggesting an injection.
Viscosupplementation and other options for knee arthritis
Viscosupplementation is a quick outpatient injection given directly into the knee joint through a thin needle. If the knee is swollen, extra fluid may be drawn out first. Depending on the product, it is a single injection or a short course. Relief usually builds over a few weeks rather than overnight, and it is best to avoid heavy activity for a day or two afterwards.
It works best as part of a wider plan. Strong thigh muscles and a healthy weight protect the knee whatever else is done, and for some knees PRP or an operation is the better fit.
| Treatment | What it is | Who it may suit | What to expect |
|---|---|---|---|
| Exercise, physiotherapy and weight control | Strengthening the thigh and hip muscles; losing excess weight to reduce load on the knee | Everyone with knee arthritis, at every grade | The foundation of all other treatment; improvement builds over 6–12 weeks |
| Viscosupplementation | An injection of hyaluronic acid that lubricates and cushions the joint | Grade 2 and grade 3 osteoarthritis when pain persists despite exercise | Results vary; people who respond often get six months to a year of relief, and it can be repeated |
| PRP therapy | Platelet-rich plasma, prepared from your own blood and injected into the knee | Early to moderate osteoarthritis, often in younger, active people | Relief can last months; it eases pain but does not regrow worn cartilage |
| High tibial osteotomy or knee replacement | Re-aligning the shin bone to unload the worn side, or replacing the worn joint surfaces | Osteotomy: younger people with bow legs; replacement: grade 4 arthritis | Hospital stay and rehabilitation; considered when injections no longer control pain |
No injection reverses arthritis, and no single treatment suits everyone. The right choice depends on your arthritis grade, your age, your activity level and how your knee has responded so far.
Find out if an injection can help your knee. Dr. Sharma will review your X-ray, examine your knee and tell you honestly whether viscosupplementation, PRP or another option suits you.
How Dr. Sharma decides if viscosupplementation is right for you
Every knee is assessed in the same four steps before an injection is suggested:
- Your story. Where it hurts, for how long, what you have already tried, and what you can no longer do.
- Examination. Swelling, range of movement, stability and the alignment of your leg.
- Standing X-rays. To grade the arthritis; viscosupplementation is mainly considered at grade 2 and grade 3.
- A clear plan. Injection, physiotherapy, another preservation option or replacement, explained so you can decide with your family.
Situations patients often bring to the clinic
Typical examples, not individual patients.
- Pain on stairs despite exercise. A 55-year-old who has done physiotherapy faithfully but still has knee pain on stairs, with grade 2 changes on X-ray. Often a good candidate for viscosupplementation alongside continued exercise.
- Evening swelling at grade 3. A 62-year-old whose knee swells after a day of housework or shopping, with grade 3 arthritis. An injection may ease pain and swelling; PRP or an operation is discussed depending on alignment and response.
- Bone on bone. A 70-year-old with grade 4 arthritis whose pain disturbs sleep. Here an injection usually adds little, and knee replacement tends to give more reliable relief.
Viscosupplementation is offered at Kailash Super Speciality Hospital, Sector 27, Noida; R. K. Orthopedic Hospital, Patparganj; and Dr. Sharma's clinic in Mayur Vihar Phase II, Delhi.
Frequently asked questions
What is viscosupplementation for the knee?
Viscosupplementation is an injection of hyaluronic acid into the knee joint. Hyaluronic acid is naturally present in joint fluid and reduces in arthritis, so the injection helps lubricate and cushion the knee to ease pain and swelling.
Who is a good candidate for viscosupplementation?
It is mainly used for grade 2 and grade 3 knee osteoarthritis, when pain continues despite exercise, physiotherapy and weight control. It usually helps little in grade 4, bone-on-bone arthritis.
How long does viscosupplementation last?
In people who respond, relief usually lasts about six months to a year, and the injection can be repeated if pain returns. Results vary, and some people get little benefit.
How soon does a viscosupplementation injection work?
Relief is usually gradual and builds over a few weeks rather than immediately. It helps to keep up your exercises and avoid heavy activity for the first day or two after the injection.
Is viscosupplementation painful, and what are the side effects?
The injection takes a few minutes and most people find it tolerable. Mild soreness, warmth or swelling for a day or two is common; infection or a severe reaction is rare, but a red, hot, very swollen knee needs prompt medical attention.
Which is better for knee arthritis, viscosupplementation or PRP?
Both can ease pain in early to moderate arthritis, and studies comparing them show mixed results. PRP may suit younger, active people with early changes, while viscosupplementation is a common choice in grade 2 and 3 arthritis; your doctor can advise which fits your knee.
Can viscosupplementation avoid knee replacement?
It can relieve symptoms and help some people stay active for longer, but it does not regrow cartilage or stop arthritis from progressing. If arthritis reaches grade 4 and pain limits daily life, knee replacement may still be needed.
Who is a good knee specialist for viscosupplementation in Noida?
Look for an orthopaedic surgeon who grades your arthritis on X-ray and offers both injections and surgery, so the advice is not limited to one option. Dr. Sushil Sharma is a senior orthopaedic and knee replacement surgeon in Noida with more than 38 years of experience and over 10,000 joint replacements, who also offers viscosupplementation and PRP.
When should I see a doctor for knee pain?
See an orthopaedic doctor if knee pain lasts more than a few weeks, keeps returning, disturbs sleep, or follows an injury. Seek care urgently if the knee is red, hot and swollen, locks, gives way, or you have a fever.
Where can I get viscosupplementation in Noida?
Dr. Sushil Sharma consults at Kailash Super Speciality Hospital, Sector 27, Noida (Mon–Sat, 2–4 PM; Sun, 11 AM–1 PM). He also sees patients at R. K. Orthopedic Hospital, Patparganj, and his clinic in Mayur Vihar Phase II, Delhi. For appointments, call +91 98731 14480.
Video transcript
Recorded by Dr. Sushil Sharma, November 2026. Duration 48 seconds.
English translation
Viscosupplementation, basically: hyaluronic acid is a high-molecular-weight sugar that is already found in the synovial fluid of the knee. But when arthritis develops, the synovial fluid, the knee's lubricating fluid, reduces. In that situation we put it in from outside. This gives a kind of lubrication and cushioning, the pain and swelling in the knee reduce, and the knee is better for at least six months to a year. Its life is extended.
Usually, viscosupplementation works in grade 2 and grade 3 arthritis, and its effect lasts from six months to a year.
मूल हिंदी (Original Hindi)
Visco-supplementation basically, Hyaluronic Acid एक enzyme होता है, जो high molecule sugar होती है, जो already घुटने के synovial fluid में पाई जाती है। लेकिन जब arthritis होती है, तो synovial fluid, जो घुटने का तरल पदार्थ है, वो कम हो जाता है। ऐसी स्थिति में हम उसे बाहर से डाल देते हैं और इससे एक तरह का lubrication हो जाता है, उसका cushioning हो जाता है और घुटने की जो pain है, swelling है, वो कम हो जाती है और कम से कम साल छह महीने के लिए बेहतर हो जाता है। उसकी life बढ़ जाती है।
Usually, Visco-supplementation Grade Two, Grade Three arthritis में कामयाब रहता है, जो छह महीने से साल भर तक असर करता है।
Take the first step for your knee
Knee arthritis does not have to mean living with pain or rushing into surgery. One consultation tells you what stage your knee is at and whether a simple injection could help you walk, climb stairs and sit more comfortably.
Where to consult: Kailash Super Speciality Hospital, Sector 27, Noida (Mon–Sat, 2–4 PM; Sun, 11 AM–1 PM); R. K. Orthopedic Hospital, Patparganj (Mon, Wed, Fri & Sat, 6–8 PM); Total Orthopaedic Solutions, Mayur Vihar Phase II, Delhi (11 AM–1 PM, Sunday closed).