en عمومى General مقالات اصيل Original Article BACKGROUND<br> Cephalic malposition of the lower lateral cartilages is a common nasal anatomic variation. Knowing the range of lateral crura (LC) divergence angle in Iranian population can help Middle East plastic surgeons. This study aimed to determine LC divergence angle of candidates for primary rhinoplasty in Iranian population.<br> METHODS<br> This cross-sectional study was conducted on 256 candidates for primary rhinoplasty from November 2017 through May 2018. Two sides of LC divergence angle were measured intraoperatively by a researcher-made device.<br> RESULTS<br> Totally, 211 female and 45 male patients with the mean age of 29.9&plusmn;6.51 years were recruited. The mean LC divergence angle was 35.86&plusmn;4.74&deg; (between 20-50&deg;). The mean LC divergence angle was 35.11&deg; and 36.02&deg; in male and females, respectively. There was no significant difference between males and females. In addition, there was no significant correlation between LC divergence angle and age. LC divergence angle had normal distribution and about 68% of the LC divergence angle were within one standard deviation of the mean (i.e. 32 to 40 degree).<br> CONCLUSION<br> In 16% of studied people, the divergence angle of the lateral crus of the lower lateral cartilage was lower than 32&deg; and was considered as malposition. Rhinoplasty, Lateral crura divergence angle, Nasal tip, Cephalic malposition, Iran 3 7 http://wjps.ir/browse.php?a_code=A-10-615-1&slc_lang=en&sid=1 Shahriar Loghmani fmaraki1373@gmail.com 10031947532846009944 10031947532846009944 No Department of Plastic Surgery, Ordibehesht Surgical Center, Isfahan, Iran Shirin Loghmani fmaraki1373@gmail.com 10031947532846009945 10031947532846009945 No Department of Plastic Surgery, Ordibehesht Surgical Center, Isfahan, Iran Mehri Doosti Irani fmaraki1373@gmail.com 10031947532846009946 10031947532846009946 No Department of Operating Room, School of Nursing and Midwifery, Shahrekord University of Medical Sciences, Shahrekord, Iran Mohammadreza Zarei mohammad.zarei3113@gmail.com 10031947532846009947 10031947532846009947 No Student Research Committee, School of Nursing and Midwifery, Isfahan University of Medical Sciences, Isfahan, Iran Fatemeh Maraki fmaraki1373@gmail.com 10031947532846009948 10031947532846009948 Yes Shahrekord University of Medical Sciences, Shahrekord, Iran