title: [Clinical significance of vascular distribution type of the expanded skin in the mastoid region in congenital microtia].
abstract: OBJECTIVE
  To classify the blood vessel distribution of the expanded skin in the mastoid region and its relevance to reasonable and reliable design of the expanded flap for auricular reconstruction in congenital microtia.
  
  
  METHODS
  The blood vessel distribution of the expanded skin in the mastoid region was observed by light permeation test. The expanded flaps with different ratio of length to width were designed according to their blood vessel distribution types.
  
  
  RESULTS
  The vascular distribution of the expanded skin in 403 cases was divided into five types. All the flaps survived completely.
  
  
  CONCLUSIONS
  The blood vessel distribution type of the expanded skin in mastoid region has great significance for the design of post-auricular expanded flap in auricular reconstruction.
authors.affiliation: Plastic Surgery Hospital, Chinese Academy of Medical Sciences, Beijing, China.
authors.forename: Hai-yue
authors.initials: HY
authors.lastname: Jiang
authors.forename: Dong-jun
authors.initials: DJ
authors.lastname: Guo
authors.forename: Bo
authors.initials: B
authors.lastname: Pan
authors.forename: Wan-hou
authors.initials: WH
authors.lastname: Guo
authors.forename: Hong-xing
authors.initials: HX
authors.lastname: Zhuang
mesh_terms: D000013:Congenital Abnormalities / Q000601:surgery*; D062109:Dermatologic Surgical Procedures; D004423:Ear / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery*; D012867:Skin / Q000098:blood supply*; D016038:Skin Transplantation; D013524:Surgical Flaps / Q000098:blood supply; D015625:Tissue Expansion Devices