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Sex-related and racial variations in orbital floor anatomy

 Seung Jin Moon  ;  Won Jai Lee  ;  Tai Suk Roh  ;  Wooyeol Ba다 
 Archives of Craniofacial Surgery, Vol.21(4) : 219-224, 2020-08 
Journal Title
Archives of Craniofacial Surgery
Issue Date
Anatomy ; Orbit ; Race factor ; Sex factor
Background: Repair of the orbital floor following trauma or tumor removal remains a challenge because of its complex three-dimensional shape. The purpose of the present study is to understand normal orbital floor anatomy by investigating its differences across four groups (Caucasian American and East Asian, males and females) via facial bone computed tomography (CT).

Methods: A total of 48 orbits in 24 patients between 20 and 60 years of age were evaluated. Although most patients underwent CT scanning following trauma, the orbital walls were intact in all patients. Linear and angular measurements of the orbital floor were obtained from CT images.

Results: Orbital floor width, length, angle between the orbital floor and medial wall, and distance from the inferior orbital rim to the lowest point of the orbital floor did not show a statistically significant difference between groups. Angles made by the infraorbital rim, the lowest point of the floor, and the anterior border of the infraorbital fissure were statistically significantly wider in East Asian females than in male groups. The floor depth in East Asian females was significantly smaller compared to all the other groups.

Conclusion: East Asian female population had smaller curvature and depth of an orbital floor than the other groups, which means racial and sex-related differences should be considered in the orbital floor reconstruction.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Plastic and Reconstructive Surgery (성형외과학교실) > 1. Journal Papers
Yonsei Authors
Roh, Tai Suk(노태석) ORCID logo https://orcid.org/0000-0001-8681-159X
Baek, Wooyeol(백우열) ORCID logo https://orcid.org/0000-0002-6638-4110
Lee, Won Jai(이원재) ORCID logo https://orcid.org/0000-0003-3056-0503
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