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Effects of infraorbital nerve's anatomical course on the fracture pattern of the orbital floor

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Author(s)
Junhyung KimSang Woo ParkJaehoon ChoiWoonhyeok JeongRyeolwoo Kim
Keimyung Author(s)
Kim, Jun HyungChoi, Jae Hoon
Department
Dept. of Plastic Surgery (성형외과학)
Journal Title
Journal of Plastic, Reconstructive & Aesthetic Surgery
Issued Date
2018
Volume
71
Issue
4
Keyword
Anatomical courseComputed tomographyInfraorbital nerveOrbital floor fracture
Abstract
In this study, details of the infraorbital nerve's (ION's) anatomical course variants were compared using computed tomography (CT), and relationships between the variants and fracture patterns in the orbital floor were investigated. Fifty-two normal individuals and 50 patients with unilateral isolated orbital floor fractures were enrolled in this study. Four measurements in normal individuals and five measurements in fracture patients were obtained in parasagittal sections. The anatomical variations of the ION were categorized into three types according to the classification by Ferences et al. Among the normal individuals, 42 orbits were classified as type 1 ION, 48 orbits as type 2, and 14 orbits as type 3. The distance from the inferior orbital rim to the upper border of the inferior orbital foramen and the length of descension portion of the ION in type 1 ION were significantly shorter than in type 2 and type 3 IONs. In patients with orbital floor fractures, the distance from the inferior orbital rim to the upper border of the inferior orbital foramen was positively correlated with herniation level of bone and soft tissue. The ION had three anatomical variants according to the degree of descension in the anterior portion of the orbit. When fracture of the orbital floor occurs in patients with type 1 ION, inferior displacement of the fractured orbital bone and orbital soft tissue may be less severe than in patients with other ION types.
Keimyung Author(s)(Kor)
김준형
최재훈
Publisher
School of Medicine (의과대학)
Citation
Junhyung Kim et al. (2018). Effects of infraorbital nerve’s anatomical course on the fracture pattern of the orbital floor. Journal of Plastic, Reconstructive & Aesthetic Surgery, 71(4), 490–495. doi: 10.1016/j.bjps.2017.10.006
Type
Article
ISSN
1748-6815
Source
https://linkinghub.elsevier.com/retrieve/pii/S1748-6815(17)30411-4
DOI
10.1016/j.bjps.2017.10.006
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/41217
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Plastic Surgery (성형외과학)
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