Introduction
Arthrocentesis, commonly referred to as joint aspiration, is a medical procedure aimed at alleviating joint pain and swelling. This treatment is suitable for larger joints, such as the knee, hip, sacroiliac joint, shoulder, elbow, and wrist. It is particularly effective for managing joint swelling due to conditions like infection, gout, and rheumatoid arthritis. Additionally, arthrocentesis serves as a valuable diagnostic tool.
During the procedure, a healthcare professional uses a sterile needle and syringe to extract fluid from the joint. This joint fluid is then sent to a laboratory for analysis, where tests such as cell count, culture, crystal analysis, and rheumatoid factor assessment may be performed. In some cases, anesthetic or corticosteroid medications are injected into the joint to help reduce pain and inflammation.
Treatment
Arthrocentesis can be performed by your physician in an office setting or at the bedside in a hospital. The area around the injection site will be cleaned and numbed with an anesthetic. Your doctor will then use a needle and syringe to withdraw fluid from the joint. Following the aspiration, they may inject pain-relieving or corticosteroid medications to enhance comfort. The fluid collected will be sent to a laboratory for further examination, and your doctor will follow up with you to discuss the results.
