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Doctor insights on: Injured Drained Swollen Joint Knee

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When they say an injured athlete had fluid drained from a swollen joint such as the knee, what is this fluid?

When they say an injured athlete had fluid drained from a swollen joint such as the knee, what is this fluid?

Synovial fluid: Usually this is synovial fluid. Synovial fluid's job is to lubricate and protect the joint. In the presence of injury, inflammation or infection, the synovial lining (part of the joint capsule), overcompensates by producing an excess amount of synovial fluid. Too much fluid can cause pain and tightness in the joint and restrict range of motion. With an acute injury, blood may also fill the joint. ...Read more

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Dr. Stratos Christianakis
1,189 doctors shared insights

Joints (Definition)

Joints are parts of the body, formed by the cartilage-covered ends of bones plus the strong, flexible ligaments that attach the bones to one another. Movements at the joints in the body allow the different parts of the body to move in ...Read more


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What injury can result in having fluid drained from a swollen joint such as a knee?

What injury can result in having fluid drained from a swollen joint such as a knee?

Arthritis.: Arthritis or an acute injury to the ACL, or other structures of the knee, can cause a fluid buildup that may need to be drained. ...Read more

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What can cause enthesopathy in a young child with pain in feet &knees & 1:160 speckled ana.Rhuemo not sure what's wrong cause no joint swelling?

What can cause enthesopathy in a young child with pain in feet &knees & 1:160 speckled ana.Rhuemo not sure what's wrong cause no joint swelling?

Apophysitis: Or growing pains. Very common in that age bracket. Most common is knee or osgood-schlatters and heel or sever's. ...Read more

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I'm permanently swollen and have a painful knee joint, what could this be?

Arthritis: It could be a number of different things, including arthritis, infection, or an injury. You should get evaluated to get a proper diagnosis and treatment options. ...Read more

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I recently developed a swollen, painful, stiff left knee, but have no history of trauma to the joint. Any ideas for the cause?

I recently developed a swollen, painful, stiff left knee, but have no history of trauma to the joint. Any ideas for the cause?

Time 4 medical eval.: There are several possible causes of atraumatic knee swelling and pain. Inflammatory arthritis, degenerative arthritis, gout, and infection are a few of the possibilities. A visit to your physician should be able to give you an answer. ...Read more

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I've got a swollen and painful knee. I've not injured it. The pain is under my knee cap and when walking it feels like it try 2 give way on me.

I've got a swollen and painful knee. I've not injured it. The pain is under my knee cap and when walking it feels like it try 2 give way on me.

Internal derangement: something in the knee is wrong, resulting in the pain and the fluid. It doesn't always happen after a recognized trauma. Since the meniscus pads and the cartilage have no nerves, sometimes people don't feel it when they tear something. You should see an orthopedic specialist to get it checked out. ...Read more

Dr. Barbara Lavi
120 doctors shared insights

Joint Swelling (Definition)

Joint swelling is a clinical finding in which there is swelling at a joint (which is where two bones meet). This can occur with injury, arthritis, infection, ...Read more