Arthrocentesis – Also called joint fluid aspiration, arthrocentesis is removal of joint fluid through a hollow needle inserted into the joint space of the knee. Although the purpose of removing joint fluid from the knee is usually so that it can be tested in the lab, removing excess fluid can also quickly ease pain and swelling. Often after withdrawing fluid, doctors use the same puncture site where the fluid was removed to inject a corticosteroid preparation and/or anesthetic into the knee joint to further relieve pain and inflammation.
The comparative viability of intra articular infusion of steroid and high atomic weight hyaluronic corrosive was analyzed in a solitary brilliant randomized trial (Caborn, 2004). Both treatments decreased osteoarthritic pain, joint solidness and capacity. The onset of impact was speedier, length of time shorter and now and again the greatness of the top impact lower with steroid infusions. In the more extended term, the change was fundamentally better in patients with treated with Hylan G-F 20 (high atomic weight hyaluronic corrosive) than those treated with steroid infusions.