Position and size of the sphenoid door jamb in the lateral orbital wall for the orbital decompressionopen access
- Authors
- Shin, Kang-Jae; Lee, Shin-Hyo; Ha, Tae-Jun; Shin, Hyun Jin; Koh, Ki-Seok; Song, Wu-Chul; Paik, Doo-Jin
- Issue Date
- Sep-2019
- Publisher
- MEDRANG
- Keywords
- Sphenoid doorjamb; Orbit; Orbital decompression; Graves disease
- Citation
- ANATOMY & CELL BIOLOGY, v.52, no.3, pp.242 - 249
- Indexed
- SCOPUS
KCI
OTHER
- Journal Title
- ANATOMY & CELL BIOLOGY
- Volume
- 52
- Number
- 3
- Start Page
- 242
- End Page
- 249
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/147201
- DOI
- 10.5115/acb.19.101
- ISSN
- 2093-3665
- Abstract
- The aim of this study was to identify the three-dimensional topography of the sphenoid door jamb (SDJ) in the lateral orbital wall and to propose navigational guidelines for safe deep lateral decompression using surgical landmarks. The 120 orbits and SDJs of 60 subjects were three-dimensionally reconstructed using Mimics software. The mean volumes of the orbit and SDJ were 24.3 mm(3) and 2.0 mm(3), respectively. The mean distances from the lateral orbital margin (LOM) to the anterior and posterior margins of the SDJ were 13.2 and 36.3 mm, respectively. The mean distances from the superior orbital fissure to the LOM and to the posterior margin of the SDJ were 40.2 mm and 4.6 mm, respectively. The mean distances from the inferior orbital fissure (IOF) to the anterior and posterior margins of the SDJ were 3.8 mm and 20.5 mm, respectively. In the superior approach of the orbit, it can be predicted that the area up to 3 cm posterior from the LOM is safe, while 1 cm posterior from the safe zone could be a dangerous zone. In the inferior approach of the orbit, the safe area will be about 1 cm posterior from the anterior tip of the IOF, and the area up to 1 cm posterior from the safe zone should be approached with extreme care.
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