Ultrasound is often used in conjunction with<unk>  to help identify appropriate anatomic markers of the joint. Typically, a 22 gauge needle is used along with a 5 mL syringe, but the sizes can be modified depending on the size of the joint that the procedure is being performed on.
Arthrocentesis
Arthroscopic lavage
Arthrogram
Arthroscopy
Patellar tap
Ibuprofen/paracetamol
Hip arthroscopy
Knee replacement