Fig. 3From: Effect of dorsal nerve fascial island flap on repairing distal soft tissue defects at the proximal segment of the index, middle, ring, and little fingersThe schematic of flap extraction. A: Middle finger; B: index, ring, and little finger. 1. Defect region; 2. dorsal branch of the PPDA; 3. skin strip; 4. subcutaneous fascia; 5. dorsal branch of the PPDN; 6. dorsal digital nerve developed from the metacarpal dorsal nerve; 7. PPDA; 8. PPDNBack to article page