Reconstruction of cervical necrotizing fasciitis defect with the modified keystone flap technique: Two case reports

Figure 6 Illustrations of the regions of perforators in the neck area and the representative design of keystone flaps for neck defects. A: Perforator territories of the anterior neck area. The chartreuse-colored territory represents the perforator-area from the superior thyroid artery, the mustard-colored territory represents the perforator-area from the inferior thyroid artery, and the sky-blue-colored territory represent the perforator-area from the transverse cervical artery; B: Representative designs of keystone flaps (KFs) for anterior neck defects. The magenta-colored ellipses represent defects, and the apricot-colored figures represent the design of KFs; C: Perforator territories of the posterior neck area. The lemon-colored territory represents the perforator-area from the occipital artery and the sky-blue-colored territory represent the perforator-area from the transverse cervical artery; D: Representative designs of KFs for posterior neck defects. The magenta-colored ellipses represent defects and the apricot-colored figures represent the design of KFs.