title: [Influence of different surgeries on growth and development of alar cartilage in young-rabbit].
abstract: OBJECTIVE
  The purpose of this study is to observe the affection of different clinical surgeries on alar nasal cartilages' growth and development. The experimental results can provide some theory basis for clinical surgeries.
  
  
  METHODS
  Twenty-eight New Zealand immature rabbits were used in this study, and divided into normal control group, hidden dissection group and cutting off alar nasal cartilages group randomly, which included 4,12 and 12 rabbits, separately. Arc incision were made on the mucous membrane of nasal cavity,and then dissect the alar nasal cartilages hidden or cut off the alar nasal cartilages, separately. The growth and development of the alar cartilage were observed at different stages after the surgery using histological and immuno-histochemical methods.
  
  
  RESULTS
  Four weeks, eight weeks, twelve weeks and sixteen weeks after surgery, there were no significant differences in the indexes of chondrocytes between hidden dissection group and control group. In cutting off alar nasal cartilages group, fiber tissue were observed in the vacancy left after being cut off cartilages, and even mucous membrane tissue could be seen in some slices.
  
  
  CONCLUSIONS
  There is no adverse influence on the growth and development of the alar cartilage after being hidden dissected. Contrarily, the restoring capability of transparent cartilage cannot counteract the injury resulted form the surgery after the alar nasal cartilages being cut off.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital, Zunyi Medical College, Zunyi, 563003, China. jianglain1964@163.com
authors.forename: Lian
authors.initials: L
authors.lastname: Jiang
authors.forename: Xiqian
authors.initials: X
authors.lastname: Dong
authors.forename: Qinggao
authors.initials: Q
authors.lastname: Song
authors.forename: Shang
authors.initials: S
authors.lastname: Chen
authors.forename: Sihai
authors.initials: S
authors.lastname: Zou
mesh_terms: D000818:Animals; D055171:Nasal Cartilages / Q000254:growth & development* / Q000601:surgery*; D009666:Nose / Q000601:surgery; D011817:Rabbits; D012225:Rhinoplasty / Q000379:methods