Figure.
Medial branch nerve block at right C3 (A), C2 (B), and third occipital nerve (C) with a 25-gauge, 2-inch needle, lateral position. Medial branch nerve traditional radiofrequency ablation (RFA) at right C3 (D), C2 (E), and third occipital nerve (F) with a 22-gauge, 3.5-inch needle, prone position. Repeat medial branch nerve cooled RFA at right C3 (G), C2 (H), and third occipital nerve (I) with a 17-gauge, 2-inch needle, lateral position.