Answer:
Ear flap of Antia and Buch: Defects in the helical rim can be repaired by freeing the entire helix from the scapha via an incision in the helical sulcus that extends through the cartilage but not through the posterior skin of the ear. The posteromedial skin is elevated just superficial to the perichondrium so that the entire helix is hanging as a chondrocutaneous component. The edges of the helix along the defect are then approximated and the helix reattached to the scapha. In this way, moderately large defects of the helix can be reconstructed. (see McCarthy, fig. 40-42)
Davis conchal flap: Defects of the upper third of the auricle can be reconstructed with a chondrocutaneous flap of ipsilateral concha. The flap is based on the anterior cutaneous pedicle and is rotated superiorly to fill the defect. The donor site and the edge of the rim are skin grafted. (see McCarthy, fig 40-47)
Converse tunnel flap: This technique can be used to fill moderate size defects of the auricle. The skin overlying the mastoid corresponding to the location of the defect is undermined and a cartilage graft placed in the subcutaneous tissue. The edge of the auricular defect is sutured to the mastoid skin incision, effectively burying the cartilage graft for 2-3 months. The auricle is detached during a second phase and the defects skin grafted. (see McCarthy, fig 40-48)