title: Importance of nasal septal cartilage perichondrium for septum strength mechanics: a cadaveric study.
abstract: This study aimed to investigate the biomechanical qualities of the perichondrium and cartilage, and to determine the strength of the septal cartilage against bending forces.
  
  
  
  This paper describes an experimental cadaver study.
  
  
  
  The nasal septal cartilages of 14 fresh cadavers (8 hours postmortem) were excised from the cadavers and cut into two strips: one with the perichondrium (group A) and one without perichondrium (group B). A bending test was then performed on the strips.
  
  
  
  The deflection of group A strips was larger than the deflection of group B strips. Flexural strength was also larger in group A strips compared to group B strips. The average modulus of elasticity was 122% higher in group A compared to group B. All conducted tests revealed statistically significant differences between groups.
  
  
  
  This study objectively shows that the perichondrium provides the cartilage with a 25% bending strength.
authors.forename: N S
authors.initials: NS
authors.lastname: Tekke
authors.forename: Z
authors.initials: Z
authors.lastname: Alkan
authors.forename: O
authors.initials: O
authors.lastname: Yigit
authors.forename: A
authors.initials: A
authors.lastname: Bekem
authors.forename: A
authors.initials: A
authors.lastname: Unal
authors.forename: F
authors.initials: F
authors.lastname: Sahin
authors.forename: H H
authors.initials: HH
authors.lastname: Balikci
authors.forename: E
authors.initials: E
authors.lastname: Acioglu
authors.forename: Y M
authors.initials: YM
authors.lastname: Durna
mesh_terms: D002102:Cadaver; D055119:Elastic Modulus / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D055171:Nasal Cartilages / Q000503:physiopathology*; D009300:Nasal Septum / Q000503:physiopathology*; D018583:Pliability / Q000502:physiology; D013718:Tensile Strength / Q000502:physiology*