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Beware of Optical Illusion of the Alar Base in Unilateral Cleft Lip Nasal Deformity by Yoshiaki Sakamoto; Junpei Miyamoyo; Kazuo Kishi is a Medicine article available to read on EtoBox.

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## Background: It is generally accepted that the alar base on the cleft side in the cleft lip nose is displaced outward and downward; therefore, it is rotated inward and upward in almost all procedures for cleft lip closure. However, nostril narrowing and collapse of the lower lateral cartilage on the cleft side are sometimes experienced. In this retrospective study, we investigated whether the preoperative alar base on the cleft side is displaced outward and downward. ## Methods: This was a retrospective evaluation using preoperative frontal images obtained from patients with unilateral cleft lip (n = 245). The midcolumellar and subalare points were placed, and each ratio was analyzed and compared to those of age-matched controls (n = 40). ## Results: The subalare on the noncleft side and subnasale were displaced upward and outward. In contrast, the subalare on the cleft side was displaced downward and inward. The displacement of the subalare was greater on the noncleft than on the cleft side. There were no significant differences between male and female patients and between the left and right sides. Among the complete cleft lip and palate, incomplete cleft lip and palate, complet

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Author

Yoshiaki Sakamoto; Junpei Miyamoyo; Kazuo Kishi

Publisher

Lippincott Williams & Wilkins

Published

2021

Language

EN

Field

Medicine (Health Sciences)