The mosaic flap for single-stage reconstruction of nasal ala defects

      Defect closure in this nasal subunit is particularly challenging due to the anatomy of the nasal ala: The convex shape of the alar rim changes into the concave alar crease. Furthermore, the thick, sebaceous skin of the nasal ala makes transposition difficult, and local skin excess, as an ideal donor site, is absent even in elderly patients. The main problem in ala reconstruction is the danger of a postoperative retraction of the alar rim, which poses serious esthetical issue and is even observed in small defects.
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