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Joint pain, stiffness, and reduced mobility can significantly affect quality of life – especially for people living with knee osteoarthritis. Among the treatment options available today, Monovisc has gained recognition as a convenient, single-injection viscosupplement designed to relieve pain and improve joint function. While Monovisc is widely considered safe and effective when administered by qualified healthcare specialist, patients often ask the same important question: What side effects are normal, and which ones are not?

Understanding what to expect after a Monovisc injection helps set realistic expectations, reduces unnecessary concern, and ensures timely medical attention if something unusual occurs alongside with common side effects. In this article, we’ll explore how Monovisc works, what patients typically experience after treatment, and how to distinguish common post-injection reactions from less common or more serious side effects that require contacting a doctor immediately.

What Is Monovisc (Hyaluronic Acid-Based Knee Injection) and How Does It Work?

Monovisc is a single-dose hyaluronic acid injection designed to treat knee osteoarthritis. Hyaluronic acid is a naturally occurring substance found in synovial fluid – the lubricating fluid that cushions joints and allows them to move smoothly with a very low risk of potential side effects.

In patients with osteoarthritis, the concentration and quality of hyaluronic acid in the joint gradually decline. This leads to increased pain, friction, inflammation, and stiffness. Monovisc works by replenishing the joint with a stabilized form of hyaluronic acid, helping to:

  • Improve joint lubrication without causing serious allergic reactions;
  • Enhance shock absorption and gradually lower pain levels as a patient’s body adjusts to the product;
  • Reduce knee pain and stiffness (or, in other words, minimize joint pain) with minimal potential risks;
  • Support smoother, more comfortable movement.

One of Monovisc’s most appealing features is that it is administered as a single injection into the affected joint, unlike other viscosupplements that require a series of injections over several weeks. For many patients, this means fewer clinic visits and faster convenience.

PLEASE NOTE
Monovisc is often recommended for patients who have not found relief from first-line treatments like physical therapy or analgesics.

Why Side Effects May Occur After a Monovisc Injection into a Knee Joint

As with any injectable treatment, side effects can occur while managing the knee osteoarthritis pain with Monovisc – not because the product is unsafe, but because the body is responding to a foreign substance or to the injection process itself. Most side effects associated with Monovisc are localized, temporary, and mild, especially when the injection is performed correctly by a trained healthcare provider. More severe reactions occur extremely rarely.

It’s important to note that individual responses to knee pain relief achieved by Monovisc injections vary. Factors such as activity level after injection, joint condition, and overall health may influence how a patient feels in the hours or days following treatment.

Common Monovisc Side Effects

These reactions are generally considered normal and typically resolve on their own within a few days.

Mild Pain or Discomfort and Light Bleeding at the Injection Site

Some patients experience localized soreness or tenderness, as well as a very light bleeding where the injection was administered. This is a common response to needle insertion and usually subsides within 24 to 72 hours.

Temporary Swelling

Mild swelling in or around the knee joint is one of the most frequently reported side effects. This occurs as the joint reacts to the injected hyaluronic acid and typically improves with rest and light movement.

Warmth or Redness

A feeling of warmth or slight redness at the injection site may appear shortly after treatment. These symptoms are usually mild and short-lived.

Joint Stiffness

Some patients report temporary stiffness or a “full” sensation in the knee. This is often part of the adjustment process as the joint accommodates the new synovial fluid supplement.

Mild Bruising

Minor bruising can occur, especially in patients with sensitive skin or those taking medications that affect clotting. This is not uncommon and usually fades within a few days.

Temporary Increase in Pain

In rare cases, pain may feel slightly worse before it gets better. This short-term increased knee pain is typically followed by gradual improvement as Monovisc begins to take effect over the following weeks.

PLEASE NOTE
There is currently no identified long-term side effects of Monovisc in clinical studies. Most users experience localized, transient side effects that typically resolve within 1 to 3 days post-injection. Localized symptoms may include itching, bruising, headaches, dizziness, and general malaise.

Less Common Adverse Reactions That May Occur After Receiving Monovisc

While Monovisc is generally well tolerated, some side effects occur less frequently. These should be monitored, especially if symptoms persist longer than expected.

Prolonged Swelling or Effusion

In some cases, joint swelling may last longer than a few days or become more pronounced. Persistent swelling should be evaluated by a healthcare provider to rule out irritation or inflammation.

Limited Range of Motion

Temporary difficulty bending or extending the knee may occur, particularly if swelling is present. This usually improves with time and appropriate aftercare.

Sensitivity Around the Joint

Some patients report tenderness beyond the injection site, including mild discomfort in surrounding tissues. This is typically transient.

Rare but Serious Monovisc Side Effects: What Is Not Normal and Requires the Help of a Healthcare Provider

Although uncommon, certain reactions require prompt medical evaluation. These are not considered normal and should never be ignored.

Signs of Infection

Infection is rare but serious. Symptoms may include:

  • Severe or worsening pain;
  • Significant redness spreading beyond the injection site;
  • Fever or chills;
  • Drainage or warmth that does not improve.

Any suspected infection requires immediate medical attention. Thus, it is worth seeking medical advice and contacting a healthcare provider immediately in case of seeing any symptoms of it.

Severe Inflammatory Reaction (Pseudoseptic Reaction)

In very rare cases, patients may develop an intense inflammatory response characterized by sudden swelling, severe pain, and stiffness. While not an infection, this reaction still requires evaluation and treatment by a healthcare professional.

Allergic Reactions

Though Monovisc is non-avian-derived and designed to minimize allergic risk, hypersensitivity reactions are possible. Symptoms may include:

  • Rash or itching;
  • Difficulty breathing;
  • Facial or throat swelling.

These symptoms require urgent care. Additionally, please remember that consulting with healthcare providers about any unexpected symptoms after Monovisc treatment is essential for safety.

PLEASE NOTE
Rare but serious side effects of Monovisc may include infections at the injection site and allergic reactions. Although very rarely, but severe inflammation characterized by significant pain and swelling has been reported as a side effect of Monovisc. Patients should seek immediate medical attention if they experience severe joint pain, swelling, or signs of infection after Monovisc injections.

What Patients Are Usually Advised to Do to Minimize the Side Effects of Monovisc

Healthcare specialists often recommend simple post Monovisc knee injection guidelines to minimize discomfort and reduce the risk of side effects, such as:

  • Avoiding strenuous activity or high-impact exercise for 24-48 hours;
  • Taking a simple pain killer (such as paracetamol or any other treatment previously approved by your healthcare specialist) if temporary pain occurs;
  • Keeping the joint clean and dry;
  • Monitoring symptoms and reporting anything unusual.

Additionally, applying ice to the injection site can help manage swelling after Monovisc injections. Following these recommendations can significantly improve the post-treatment experience.

PLEASE NOTE
According to medical practitioners, users are advised to avoid strenuous activities for at least 48 hours post-injection to minimize irritation and potential complications.

When Results Typically Become Noticeable

Unlike corticosteroid injections, Monovisc does not provide relief and reduce pain instantly. Most patients begin noticing improvements within 1 to 4 weeks, with benefits potentially lasting several months. Understanding this timeline helps prevent unnecessary concern about delayed results.

Why the Administration by Certified Healthcare Professionals Matters

The safety profile of Monovisc is closely tied to proper handling and administration. Certified healthcare providers are trained to ensure:

  • Correct intra-articular placement;
  • Sterile technique;
  • Appropriate patient selection.

This professional expertise plays a major role in minimizing side effects and optimizing outcomes of the treatment, as well as eliminating the risk of such severe symptoms after the injection as severe swelling, aggressive skin rash, strong localized pain, and further complica.

Conclusion

Monovisc is a well-established, single-injection solution for knee osteoarthritis that offers meaningful pain relief and improved mobility for many patients. While mild and typically temporary and common side effects such as swelling or soreness are normal, understanding the difference between expected reactions and uncommon complications that require emergency medical help is key to a safe and positive treatment experience.

For certified healthcare providers looking for an online supplier of authentic, brand-name Monovisc with confidence, BeautyDermal offers attractive purchasing conditions. By placing your order, you can benefit your practice by a lot.

Post Scriptum

Apart from Monovisc, BeautyDermal offers a wide range of other drugs and injectables intended for professional use. Contact our sales representative to receive a complete list of products in our assortment.

Side effects occur because the body is responding to a foreign substance or the injection process itself, not because the product is unsafe.

Most side effects are localized, temporary, and mild. Severe reactions occur extremely rarely when injections are performed correctly by trained providers.

No identified long-term side effects exist in clinical studies. Most side effects are localized and transient, resolving within 1-3 days.

Activity level after injection, joint condition, overall health, and individual patient responses vary and may influence post-treatment experiences.

Most common side effects typically resolve within 24-72 hours to 1-3 days post-injection.

Yes, mild swelling in or around the knee joint is one of the most frequently reported side effects and typically improves with rest and light movement.

4 Sources are used
  1. Anika Therapeutics. (2023). Monovisc (high molecular weight hyaluronan): Prescribing information. Bedford, MA: Anika Therapeutics, Inc.
  2. Waddell, D. D., & Joseph, B. (2016). Delayed total knee replacement with hyaluronic acid. Journal of Knee Surgery, 29(02), 159-168.
  3. Arden, N. K., Åkermark, C., Andersson, M., Todman, M. G., & Altman, R. D. (2014). A randomized saline-controlled trial of NASHA hyaluronic acid for knee osteoarthritis. Current Medical Research and Opinion, 30(2), 279-286.
  4. Anika Therapeutics. (2023). Monovisc: Product specifications and clinical safety data. Official manufacturer documentation.