Computed Tomography Analysis of Nasal Anatomy in Dorsal Preservation Rhinoplasty.

Computed tomography (CT) has an important place in preoperative planning. The need for resection of the ethmoid perpendicular bone may be greater in males in lowering the dorsal hump, and therefore they may be more prone to skull base complications. Thus, it is necessary to be more careful in the surgical stage of subdorsal septal excision in males. The nasal bone thickness was thinner, and the K area position was more cephalic in females.