Under regional anesthesia, the patient is positioned supine on the operating table. The arm is abducted and the fingers are suspended from 5 to 10 lb of fingertrap traction. The forearm and wrist are prepped and draped in the usual manner. Under tourniquet control, a 22-gauge needle is inserted in the space between the EPL and the EDC just distal to Lister’s tubercle at 10° of proximal inclination. Then, 5 mL of normal saline is injected into the space. A superficial skin is done. The subcutaneous tissues are dissected bluntly using tenotomy scissors. The posterior capsule is pierced. Trocar and cannula are inserted. The scope is inserted.