The anesthetic is administered. The procedure does not begin until you are numb. A trocar is pushed into the joint space. The biopsy needle is inserted through the trocar. You may feel fleeting pain when the needle enters the joint.
Suction is applied.
Tissue is collected. The needle and trocar are removed. Adhesive bandage is applied to the biopsy site. Tissue is sent to the laboratory for analysis. After the test Immediate post-test care Your pulse, blood pressure, breathing status and temperature are checked at regular intervals until they are stable.