The defects of helix and earlobe are mostly caused by trauma, burn, tumor resection and infection. Auricular plasty can cut the skin and cartilage on both sides of the defect along the groove of the helix when the defect is less than or equal to the total length of the helix13, peel it off subcutaneously behind the ear, wedge off part of the auricle boat, push the flaps on both sides to suture directly, or take the composite tissue piece of the opposite auricle boat for transplantation after reducing the defect area by this method. If the defect is greater than 1/3, a cartilage scaffold can be implanted at the defect and covered with a flap behind the ear. According to the repair principle of microtia, the defect can also be repaired by covering cartilage scaffold with temporal fascia flap or embedding dilator and expanded flap behind the ear. Part or all of the defect of the helix can also be repaired by transferring the small skin tube to the edge of the defect for "edging". Partial defect of earlobe can be sutured directly by V-shaped incision. All defects can be reconstructed with self-folding flap in mastoid, which should be slightly larger than the original earlobe, and the flap can be delayed if necessary. The shape of the earlobe will be repaired in the second stage.

Second, auricle partial defect plasty

According to the contour of the external ear, the skin of the posterior margin was cut, and the fascia flap, which was 1.5~2cm wider than the flap, was lifted at the same position, and the auricular cartilage scaffold was implanted between the two flaps to form a 45-degree cranioauricular angle. Skin grafting and postoperative treatment of the wound are the same as above. You can also cut 8~9cmX7~8cm superficial temporal fascia island flap in the temporal area, wrap the auricle bracket with full-thickness or medium-thickness skin flap, wrap it after shaping, and do ear plastic surgery. This method is suitable for the acquired total ear defect with abnormal position of residual ear, shallow hairline, skin loss in ear area and scar in posterior mammary sinus area.

Yi Qianyuan's plastic surgery reminder: according to different auricle plastic surgery methods, choose surgical incision and residual ear treatment to ensure the survival of local skin flap. The residual ear can be treated in the first stage or in the later stage, if there is no contradiction.