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KMID : 1237720170500010041
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Anatomy & Cell Biology
2017 Volume.50 No. 1 p.41 ~ p.47
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Three-dimensional and topographic relationships between the orbital margins with reference to assessment of eyeball protrusion
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Shin Kang-Jae
Lee Shin-Hyo
Koh Ki-Seok
Song Wu-Chul
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Abstract
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This study investigated the topographic relationships among the eyeball and four orbital margins with the aim of identifying the correlation between orbital geometry and eyeball protrusion in Koreans. Three-dimensional (3D) volume rendering of the face was performed using serial computed-tomography images of 141 Koreans, and several landmarks on the bony orbit and the cornea were directly marked on the 3D volumes. The anterior-posterior distances from the apex of the cornea to each orbital margin and between the orbital margins were measured in both eyes. The distances from the apex of the cornea to the superior, medial, inferior, and lateral orbital margins were 5.8, 5.8, 12.0, and 17.9 mm, respectively. Differences between sides were observed in all of the orbital margins, and the distances from the apex of the cornea to the superior and inferior orbital margins were significantly greater in females than in males. The anterior-posterior distance between the superior and inferior orbital margins did not differ significantly between males (6.3 mm) and females (6.2 mm). The data obtained in this study will be useful when developing practical guidelines applicable to forensic facial reconstruction and orbitofacial surgeries.
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KEYWORD
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Orbit, Eyeball, Protrusion, Orbitofacial surgery, Forensic facial reconstruction
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