@precisioncaremedical: How to alleviate knee pain without surgery? Knee aspiration, also called arthrocentesis, is a simple procedure used to drain excess fluid from the knee joint. Fluid buildup can cause swelling, pain, and limit your ability to move comfortably. Removing it helps reduce pressure inside the joint and restore mobility — commonly done for injuries, post-surgical swelling, or joint inflammation. #kneepain #osteoarthritis #painrelief