Fig. 1
Schematic diagram of the DPAPF flap design in the two conditions. a The ankle is in a relaxed state. b The ankle is fixed in dorsiflexion using a Kirschner wire. The distance between the pivot point and the recipient area was shortened. c When the ankle is fixed in dorsiflexion using a Kirschner wire, the length of the fascial pedicle was reduced by “d” cm, and the total length of the flap also reduces by “d” cm. p, pivot point; point a or point b is where the defect is closest to the pivot point; d1 and d2 represent the shortest distances from the pivot point to the defect. d = d1−d2. K, Kirschner wire