arthrocentesis
/ˌɑrθroʊsɛnˈtisɪs/
noun
- A medical procedure in which fluid is drained from a joint using a needle, usually to reduce swelling or to test for infection.
- After the arthrocentesis, the lab tested the joint fluid for signs of infection.
- Arthrocentesis can provide relief from pressure and pain in an inflamed joint.
- The doctor performed an arthrocentesis to remove excess fluid from the patient's swollen knee.