title: Diced ear cartilage with perichondrial attachment in rhinoplasty: a new concept.
abstract: BACKGROUND
  Diced cartilage is a valuable material that has recently been added to the graft options in rhinoplasty. Shaping, fixation, and resorption are the main concerns with this material. Perichondrially attached diced conchal cartilage may be a new possibility to solve some of these problems.
  
  
  OBJECTIVE
  The authors evaluate the outcome of perichondrially attached diced cartilage in a rabbit model and compare the results with injectable cartilage grafting.
  
  
  METHODS
  Ear cartilage was removed from 1 auricle in each of the 16 rabbits included in this study; samples were divided in 2 pieces. After precise weighing, both segments were diced. The perichondrium was left attached to 1 of the pieces. Both segments were inserted in 2 separate pockets in the dorsum of the animal. After a 3-month period, both samples were removed and measured for growth/resorption.
  
  
  RESULTS
  At the beginning of this study, the difference in weight between groups was statistically insignificant (P = .213), but 3 months after insertion, significant growth was observed in the perichondrial group (P = .019).
  
  
  CONCLUSIONS
  The vascularization and significant growth in weight of the perichondrially attached diced cartilage samples are evidence of the viability of this material. The structural integrity and solid framework afforded by this option suggest that the material should be used more frequently in nasoskeletal augmentation.
authors.affiliation: Tehran University of Medical Sciences, Iran. info@drhafezi.com
authors.forename: Farhad
authors.initials: F
authors.lastname: Hafezi
authors.forename: Hamed
authors.initials: H
authors.lastname: Bateni
authors.forename: Bijan
authors.initials: B
authors.lastname: Naghibzadeh
authors.forename: Amir Hossein
authors.initials: AH
authors.lastname: Nouhi
authors.forename: Abolhasan
authors.initials: A
authors.lastname: Emami
authors.forename: S Javad
authors.initials: SJ
authors.lastname: Fatemi
authors.forename: Mirsepehr
authors.initials: M
authors.lastname: Pedram
authors.forename: S Jaber
authors.initials: SJ
authors.lastname: Mousavi
mesh_terms: D000818:Animals; D004425:Ear Cartilage / Q000637:transplantation*; D008297:Male; D011817:Rabbits; D012225:Rhinoplasty / Q000379:methods*; D013997:Time Factors