Knee effusion

Fluid in the knee, also known as knee effusion, is a common issue that occurs when excess fluid accumulates in the knee joint. This can result from intense physical activity, such as running or sports, but can also be caused by underlying conditions like osteoarthritis, rheumatoid arthritis, or a knee injury, such as a meniscus or ligament tear. When the knee becomes overloaded or damaged, the body responds by producing extra fluid, which can lead to swelling, stiffness, and pain. This may limit knee mobility and make daily activities more difficult.

What Symptoms Does Fluid in the Knee Cause?

The presence of fluid in the knee can cause various symptoms, including swelling around the kneecap, stiffness, and a warm sensation in the knee joint. This may be accompanied by pain, particularly when extending or bending the knee, as well as when performing daily activities such as walking or climbing stairs. The swelling can make the knee appear thicker than usual, and in severe cases, the knee may “lock,” meaning movement is severely restricted. These symptoms can cause significant discomfort and require appropriate treatment.

What Causes Fluid in the Knee?

Fluid in the knee can be caused by several factors. Overuse of the knee, such as intense physical activity or prolonged standing, can lead to irritation and inflammation, resulting in fluid buildup. Injuries like meniscus tears or ligament damage are also common causes of fluid in the knee. Additionally, underlying conditions such as osteoarthritis, rheumatoid arthritis, gout, or an infection can lead to this issue. Being overweight and aging increase the risk of these conditions, as they place additional pressure on the knee joint, which can cause wear and fluid formation.

How Do We Treat Fluid in the Knee?

When knee swelling results from an O- or X-leg position, we assess whether insole therapy can improve pressure distribution. A gait analysis and 3D foot scan help us determine the right correction. If the cause lies elsewhere, we refer to a specialist.

Personalized Advice

If you’re experiencing fluid in your knee, we recommend making an appointment with our podiatrist or podotherapist for a thorough evaluation. Feel free to call us for advice or to schedule a consultation!

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