arthrocenteses

Arthrocentesis is a medical procedure used to obtain a sample of synovial fluid from a joint for diagnostic purposes. The procedure is typically performed under local anesthesia or sedation, depending on the patient's age and the location of the joint being accessed. The most common sites for arthrocentesis include the knee, shoulder, and wrist, but it can be performed on any joint in the body.

The procedure involves inserting a needle through the skin and into the joint space. Once the needle is in place, a syringe is used to withdraw a small amount of synovial fluid. The sample is then sent to a laboratory for analysis, which can help diagnose conditions such as infection, inflammation, or crystal deposition.

Arthrocentesis is a relatively simple and low-risk procedure, with most patients experiencing minimal discomfort and no significant complications. However, there is a small risk of infection, bleeding, or nerve damage, particularly if the procedure is performed on a joint that is difficult to access or if the patient has certain medical conditions.

In some cases, arthrocentesis may be followed by a joint aspiration, which involves removing a larger volume of synovial fluid to relieve symptoms of joint inflammation or infection. The decision to perform a joint aspiration is based on the results of the arthrocentesis and the patient's clinical presentation.