What is Hyaluronic Acid (HA)?
Hyaluronic acid (HA) is a natural lubricant found in synovial fluid, the liquid that cushions and protects your knee joint. In a healthy knee, HA molecules are long and thick, providing excellent shock absorption and smooth joint movement. In a knee with osteoarthritis (OA), the joint (synovial) fluid produced is lower in quality (it is less viscous), resulting in less cushioning and protection to the cartilage tissue.
How Does OA Affect Your Joint?
With knee OA, chronic inflammation slowly transforms synovial fluid into an ‘inflammatory soup’, filled with harmful mediators that damage cartilage, irritate tissues, and accelerate joint degeneration. In short:
- HA molecules become shorter and weaker, reducing their ability to cushion the joint.
- The synovial fluid loses its protective properties, leading to increased cartilage damage and pain.
- The joint becomes stiffer and more inflamed, making movement more difficult.
How HA Injections Help
When injected into the knee, HA resets the joint environment by:
✔ Shutting down harmful pro-inflammatory mediators, reducing chronic inflammation.
✔ Restoring longer HA chains, making the synovial fluid thicker and more protective.
✔ Improving shock absorption, reducing pain and slowing cartilage breakdown.
✔ Enhancing lubrication, leading to smoother movement and less joint stiffness.
How Long Do HA Injections Work?
HA treatments typically last 4-6 months, depending on the level of inflammation in your knee at the start of treatment. With regular treatments every 4-6 months, HA helps maintain a healthier joint environment, slowing the progression of OA and protecting your cartilage until curative treatments become available.
What to Expect After Treatment
- Gradual improvement: Pain relief and mobility improvements typically develop over several weeks.
- Better movement: Reduced stiffness makes it easier to stay active, which further supports joint health.
- Best results with consistency: Regular HA treatments ensure the synovial fluid stays healthier, providing continuous protection for your knee.
At Reflex Knee Specialists, we focus on cartilage preservation and protection. HA injections are a powerful tool in maintaining knee health and function. Ask us if HA therapy is right for you!