fig2

Figure 2. Radial forearm free flap (RFFF)^[31]. A-B: tube-in-a-tube. The flap is then folded in to make two tubes, with epithelium lining the urethra as well as the surface of the phallus. There is a resultant large donor site defect requiring skin grafting. The RFFF is based upon the radial artery with the original flap dimensions of 10 cm × 11-12 cm. The length of this flap is determined in part by the length of the forearm, which will limit the length of the reconstructed phallus. Photos courtesy of Dr. Jens Berli