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. Activity after test Watch for swelling or tenderness at the joint where the biopsy was taken. Rest the joint for at least 1 day. Complications, such as infection and bleeding into the joint, may occur but only rarely.