Joint aspiration is a way to remove fluid from a joint. It is also called arthrocentesis
The procedure is used to:
Infection, gout, and other problem can cause fluid to form in joints. The fluid can cause pain and swelling. Testing joint fluid can help your healthcare provider figure out the cause of your symptoms.
Follow any instructions your healthcare provider gives you.
Your healthcare provider will clean the area around the joint. You may be given a local anesthetic to numb the area so the procedure will not be painful.
Your provider will insert a needle into the joint and withdraw fluid. After removing the needle, your provider will put pressure on the place where the needle was inserted and may put a bandage on it. Your provider may use ultrasound or X-rays to guide the needle.
The fluid sample will be tested in a lab.
You may be given shots into the joint to prevent inflammation.
Ask your healthcare provider what other steps you should take and when you should come back for a checkup.
Removing fluid may help your joint feel better. The procedure may also help your healthcare provider make a better diagnosis.
You should ask your healthcare provider how these risks apply to you.
Call your provider right away if:
Call during office hours if: