| Anatomical Location and Distribution of Supraorbital Notch and Foramen Evaluations Using Facial 3D Computed Tomography. |
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Kwang Eon Choi, Hwa Lee, Min Wook Chang, Tae Soo Lee, Se Hyun Baek |
1Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea. shbaek6534@korea.ac.kr
2Department of Ophthalmology, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, Korea.
3Nune Eye Hospital, Seoul, Korea. |
| 3차원 전산화단층촬영을 이용한 안와위패임과 안와위구멍의 해부학적 위치와 모양 분포 |
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최광언1⋅이 화1⋅장민욱2⋅이태수3⋅백세현1 |
Department of Ophthalmology, Korea University College of Medicine1, Seoul, Korea
Department of Ophthalmology, Dongguk University Ilsan Hospital, Dongguk University College of Medicine2, Goyang, Korea
Nune Eye Hospital3, Seoul, Korea |
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| Abstract |
PURPOSE
To evaluate anatomical locations and distributions of supraorbital notch and foramen using facial 3D computed tomography in the Korean adult population. METHODS: The study sample was composed of 87 adult patients with no history of trauma or ocular disease. The horizontal position of the supraorbital foramen or notch was recorded in relation to a vertical line defined by a reproducible hypothetical point, such as the nasion and mid-maxilla and the midpoint of the horizontal supraorbital plane. The distance and angle for each supraorbital foramen and notch were calculated from the defined vertical line. Furthermore, vertical distance from supraorbital plane, which was established using the highest points of both supraorbital rims, was obtained from the supraorbital foramen. RESULTS: The mean age of the 87 patients was 45.44 +/- 8.34 years (range, 30-59 years). There were 66 eyes in the supraorbital notch and 108 eyes in the supraorbital foramen. There were no distributional differences between the 2 sides. The mean horizontal distance of both types was 23.95 +/- 3.93 mm (range, 16.41-38.94 mm). The horizontal distance of male patients was longer than the female patients (25.18 +/- 4.16 mm vs. 22.63 +/- 3.19 mm, p < 0.001, based on independent t-test) and the horizontal distance of supraorbital notch was shorter than the supraorbital foramen (22.59 +/- 3.18 mm vs. 26.18 +/- 4.04 mm, respectively, p < 0.001, based on independent t-test). The mean vertical distance and mean angles of the supraorbital foramen were 3.02 +/- 1.119 mm and 6.81 +/- 2.31 degrees (degrees), respectively. CONCLUSIONS: The present study described the anatomical location of each supraorbital opening type in Korean adults. According to horizontal distance, a surgeon can avoid iatrogenic injury of the supraorbital neurovascular complex, especially during brow surgery. In addition, the anatomy can aid in targeting supraorbital neurovascular complex in cases of nerve block. |
| Key Words:
Supraorbital foramen;Supraorbital notch;Three-demensional computed tomography |
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