Arthrocentesis
Encyclopedia
Arthrocentesis is the clinical procedure of using a syringe
to collect synovial fluid
from a joint capsule
. It is also known as joint aspiration. Arthrocentesis is used in the diagnosis of gout
, arthritis
, and synovial infections.
Syringe
A syringe is a simple pump consisting of a plunger that fits tightly in a tube. The plunger can be pulled and pushed along inside a cylindrical tube , allowing the syringe to take in and expel a liquid or gas through an orifice at the open end of the tube...
to collect synovial fluid
Synovial fluid
Synovial fluid is a viscous, non-Newtonian fluid found in the cavities of synovial joints. With its yolk-like consistency , the principal role of synovial fluid is to reduce friction between the articular cartilage of synovial joints during movement.-Overview:The inner membrane of synovial joints...
from a joint capsule
Joint capsule
An articular capsule is an envelope surrounding a synovial joint.-Layers:Each capsule consists of two layers:* an outer layer composed of avascular white fibrous tissue...
. It is also known as joint aspiration. Arthrocentesis is used in the diagnosis of gout
Gout
Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis—a red, tender, hot, swollen joint. The metatarsal-phalangeal joint at the base of the big toe is the most commonly affected . However, it may also present as tophi, kidney stones, or urate...
, arthritis
Arthritis
Arthritis is a form of joint disorder that involves inflammation of one or more joints....
, and synovial infections.