Knee gel injections, also known as viscosupplementation, are a common treatment option for individuals experiencing pain from knee osteoarthritis. Many people considering or undergoing this procedure often wonder about the immediate aftermath, particularly regarding post-injection discomfort. Understanding what to expect after a gel injection can help manage concerns and set realistic expectations for recovery.
Understanding Gel Injections for Knee Pain
Gel injections for knee pain involve hyaluronic acid, a substance naturally found in healthy joint fluid. In individuals with osteoarthritis, this natural hyaluronic acid breaks down, reducing its lubricating and shock-absorbing properties. The injected gel aims to supplement this depleted fluid, helping to restore some of the joint’s natural cushioning and reduce friction between bones. This can alleviate pain and enhance mobility, providing smoother movement within the arthritic joint.
Expected Discomfort After a Gel Injection
Following a knee gel injection, localized discomfort at the injection site is common. This may include mild soreness, aching, or a feeling of fullness in the knee. Slight swelling or warmth may also occur.
These sensations are a temporary and normal reaction to the needle and fluid introduction. The body’s tissues respond to the minor trauma of the injection, causing a brief inflammatory response. This initial discomfort is distinct from the underlying knee pain the injection aims to treat.
For most people, post-injection discomfort is mild and resolves within a few days to about a week. While intensity varies, it does not significantly interfere with daily activities. It is important to differentiate this expected, transient soreness from more severe or persistent pain.
Managing Post-Injection Soreness at Home
Managing mild soreness after a gel injection involves simple home care. Resting the knee for the first 24 to 48 hours helps minimize discomfort and allows the injected material to settle. Avoiding strenuous activities or heavy lifting during this period is recommended.
Applying an ice pack to the affected knee for 15-20 minutes at a time, several times daily, can reduce swelling and alleviate pain. Elevating the leg while resting also helps reduce fluid accumulation and discomfort. Over-the-counter pain relievers, such as acetaminophen or NSAIDs like ibuprofen, can manage mild pain; consult a healthcare provider regarding medication use.
When to Contact Your Doctor
While mild discomfort is expected, certain symptoms after a gel injection warrant medical attention. If you experience severe or rapidly worsening pain that does not subside with rest or over-the-counter medication, contact your doctor. This could indicate an unexpected reaction or complication.
Excessive swelling, significant redness, or warmth spreading beyond the immediate injection site are also concerning signs. These symptoms, especially if accompanied by fever or chills, could point to an infection within the joint. Any unusual discharge or pus from the injection site is another clear indicator to seek prompt medical advice.