This is a quick reference on how to perform an ultrasound-guided arthrocentesis — a skill that’s incredibly useful, whether you’re evaluating a hot, swollen joint or just want to give your patient fast relief with precision.

Why do it ultrasound-guided? Because it’s:

• More accurate (especially with tricky joints like knees or wrists),

• Less painful for the patient,

• And it improves diagnostic yield when evaluating septic joints, gout, or hemarthrosis.

Plus, there’s something satisfying about watching your needle glide right into the effusion in real-time!