The use of hyaluronic acid in joint injections and its benefits in arthritis and other joint conditions

Joint pain is a common complaint, particularly as people age or place repeated stress on their joints through work, sport, or injury. Conditions such as osteoarthritis can lead to significant discomfort, stiffness, and reduced mobility. For those who find limited relief from other treatment options, hyaluronic acid joint injections may offer an alternative, especially in the early to moderate stages of joint degeneration. In this article, an experienced consultant in sports medicine explains the use of hyaluronic acid for injured, damaged, or painful joints.

How do joint conditions and arthritis arise?

Joints are complex structures where bones meet and move, cushioned by cartilage and lubricated by a natural fluid known as synovial fluid. Over time or through injury, the cartilage can wear down, leading to increased friction within the joint. This is most commonly seen in osteoarthritis, but other forms of arthritis, such as rheumatoid arthritis, can also affect the joint structure and function.

The result is pain, swelling, stiffness, and reduced range of movement. These symptoms may worsen over time and begin to interfere with everyday tasks such as walking, climbing stairs, or gripping objects.

Limitations of other treatments for joint pain

Initial treatments for arthritis and joint pain typically include pain relief medications, anti-inflammatory tablets, physiotherapy, and lifestyle adjustments such as weight management and exercise modification. While many patients find benefit from these approaches, not all respond well or can tolerate long-term medication, particularly non-steroidal anti-inflammatory drugs (NSAIDs), which carry risks such as stomach irritation, high blood pressure, and kidney problems.

Steroid injections are sometimes used for more severe flares of joint pain. While effective in the short term, repeated use of steroids within the same joint can potentially lead to cartilage thinning or weakening of surrounding tissues. For these reasons, alternative treatments that provide relief without such drawbacks are increasingly being explored, such as hyaluronic acid injections.

What is hyaluronic acid, and how is it used for joint injections?

Hyaluronic acid is a naturally occurring substance found in the synovial fluid of healthy joints. It acts as a lubricant and shock absorber, helping the joint to move smoothly and painlessly. In arthritic joints, the concentration and quality of hyaluronic acid are often reduced.

Injections of hyaluronic acid aim to restore the joint’s natural lubrication. These injections are most commonly used in the knee, but can also be used in other joints such as the hip, shoulder, and ankle. The procedure is performed in a clinic and usually takes just a few minutes. In some cases, ultrasound guidance may be used to improve accuracy.

Depending on the product used and the treatment plan, patients may receive a single injection or a course of injections over several weeks.

After a hyaluronic acid injection, patients are typically advised to avoid strenuous activity for 24–48 hours. Most can resume normal daily activities immediately but may be encouraged to rest the joint on the day of the injection. Any mild discomfort can usually be managed with simple pain relief such as paracetamol and the application of an ice pack if needed.

The benefits of hyaluronic acid injections

Not every patient experiences the same response, but many report reduced joint pain, improved mobility, and a delay in the need for surgical intervention. The benefits are usually most noticeable in people with mild to moderate osteoarthritis, particularly when other conservative treatments have not provided sufficient relief.

Unlike steroid injections, hyaluronic acid does not have an anti-inflammatory effect but works by improving the joint’s natural biomechanics. This may make it a better option for longer-term joint support. The risk of side effects is generally low, with most patients tolerating the treatment well. Some may experience temporary swelling or discomfort at the injection site, which usually resolves within 48 hours.

Who can get hyaluronic acid injections for their joints?

It’s important to note that hyaluronic acid injections are not suitable for every patient. They are generally not recommended for people with severe bone-on-bone arthritis, active joint infections, or certain allergies. The response to treatment varies, and some patients may not experience a significant improvement.

Consultation with sports or musculoskeletal specialists can help determine whether this treatment is appropriate based on the type and severity of the joint condition, the patient’s overall health, and their treatment goals.