Orbital apex anatomy: relationship between the optic foramen and anterior face of sphenoid sinus - a radiological study.
Journal
Eye (London, England)
ISSN: 1476-5454
Titre abrégé: Eye (Lond)
Pays: England
ID NLM: 8703986
Informations de publication
Date de publication:
09 2021
09 2021
Historique:
received:
30
05
2020
accepted:
04
11
2020
revised:
03
11
2020
pubmed:
24
11
2020
medline:
21
9
2021
entrez:
23
11
2020
Statut:
ppublish
Résumé
This study aims to identify radiologically the position of the optic foramen in relation to the anterior face of the sphenoid sinus, to aid surgeons in their planning for orbital decompression. CT scans of 100 orbits from 50 adult patients without any abnormality were assessed. Primary outcome measures included: position and measurement of the distance from the optic foramen to the anterior face of the sphenoid sinus. Secondary outcomes included: medial orbital wall length, distance from the optic foramen and the anterior face of the sphenoid sinus to the carotid prominence in the sphenoid sinus, and the thickness of bone anterior to the optic foramen. The mean location of the optic foramen was just posterior to the position of the anterior face of sphenoid sinus, with an average distance of +0.4 +/- 3.5 mm. In 54% of orbits the optic foramen was positioned posterior to the anterior face of the sphenoid sinus. The finding was symmetrical in 80% of patients. Our study identifies that the optic foramen lies posterior to the anterior face of sphenoid sinus in approximately half of cases. The position may be asymmetric in 20% of individuals.
Sections du résumé
BACKGROUND/OBJECTIVES
This study aims to identify radiologically the position of the optic foramen in relation to the anterior face of the sphenoid sinus, to aid surgeons in their planning for orbital decompression.
METHODS
CT scans of 100 orbits from 50 adult patients without any abnormality were assessed. Primary outcome measures included: position and measurement of the distance from the optic foramen to the anterior face of the sphenoid sinus. Secondary outcomes included: medial orbital wall length, distance from the optic foramen and the anterior face of the sphenoid sinus to the carotid prominence in the sphenoid sinus, and the thickness of bone anterior to the optic foramen.
RESULTS
The mean location of the optic foramen was just posterior to the position of the anterior face of sphenoid sinus, with an average distance of +0.4 +/- 3.5 mm. In 54% of orbits the optic foramen was positioned posterior to the anterior face of the sphenoid sinus. The finding was symmetrical in 80% of patients.
CONCLUSIONS
Our study identifies that the optic foramen lies posterior to the anterior face of sphenoid sinus in approximately half of cases. The position may be asymmetric in 20% of individuals.
Identifiants
pubmed: 33223532
doi: 10.1038/s41433-020-01289-w
pii: 10.1038/s41433-020-01289-w
pmc: PMC8376897
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2613-2618Informations de copyright
© 2020. The Author(s), under exclusive licence to The Royal College of Ophthalmologists.
Références
Cornelius CP, Mayer P, Ehrenfeld M, Metzger MC. The orbits-anatomical features in view of innovative surgical methods. Facial Plast Surg. 2014;30:487–508.
doi: 10.1055/s-0034-1394303
Singh S, Curragh DS, Selva D. Augmented endoscopic orbital apex decompression in dysthyroid optic neuropathy. Eye. 2019;33:1613–8.
doi: 10.1038/s41433-019-0464-5
Wu W, Selva D, Bian Y, Wang X, Sun MT, Kong Q, et al. Endoscopic medial orbital fat decompression for proptosis in type 1 graves orbitopathy. Am J Ophthalmol. 2015;159:277–84.
doi: 10.1016/j.ajo.2014.10.029
Stokken J, Gumber D, Antisdel J, Sindwani R. Endoscopic surgery of the orbital apex: outcomes and emerging techniques. Laryngoscope. 2016;126:20–4.
doi: 10.1002/lary.25539
Lund VJ, Larkin G, Fells P, Adams G. Orbital decompression for thyroid eye disease: a comparison of external and endoscopic techniques. J Laryngol Otol. 1997;111:1051–5.
doi: 10.1017/S0022215100139313
Stammberger HR, Kennedy DW, Anatomic Terminology G. Paranasal sinuses:anatomic terminology and nomenclature. Ann Otol Rhinol Laryngol Suppl. 1995;167:7–16.
doi: 10.1177/000348949510410s01
Chmielik LP, Chmielik A. The prevalence of the Onodi cell—most suitable method of CT evaluation in its detection. Int J Pediatr Otorhinolaryngol. 2017;97:202–5.
doi: 10.1016/j.ijporl.2017.04.001
Ozdemir A, Bayar Muluk N, Asal N, Sahan MH, Inal M. Is there a relationship between Onodi cell and optic canal? Eur Arch Otorhinolaryngol. 2019;276:1057–64.
doi: 10.1007/s00405-019-05284-0
Wada K, Moriyama H, Edamatsu H, Hama T, Arai C, Kojima H, et al. Identification of Onodi cell and new classification of sphenoid sinus for endoscopic sinus surgery. Int Forum Allergy Rhinol. 2015;5:1068–76.
doi: 10.1002/alr.21567
Enatsu K, Takasaki K, Kase K, Jinnouchi S, Kumagami H, Nakamura T, et al. Surgical anatomy of the sphenoid sinus on the CT using multiplanar reconstruction technique. Otolaryngol Head Neck Surg. 2008;138:182–6.
doi: 10.1016/j.otohns.2007.10.010
Bansberg SF, Harner SG, Forbes G. Relationship of the optic nerve to the paranasal sinuses as shown by computed tomography. Otolaryngol Head Neck Surg. 1987;96:331–5.
doi: 10.1177/019459988709600405
DeLano MC, Fun FY, Zinreich SJ. Relationship of the optic nerve to the posterior paranasal sinuses: a CT anatomic study. AJNR Am J Neuroradiol. 1996;17:669–75.
pubmed: 8730186
pmcid: 8337258
Akdemir G, Tekdemir I, Altin L. Transethmoidal approach to the optic canal: surgical and radiological microanatomy. Surg Neurol. 2004;62:268–74.
doi: 10.1016/j.surneu.2004.01.022
Abed SF, Shams P, Shen S, Adds PJ, Uddin JM. A cadaveric study of the morphometric and geometric relationships of the orbital apex. Orbit. 2011;30:72–6.
doi: 10.3109/01676830.2010.538126
Karakas P, Bozkir MG, Oguz O. Morphometric measurements from various reference points in the orbit of male Caucasians. Surg Radio Anat. 2003;24:358–62.
doi: 10.1007/s00276-002-0071-0
Singh J, Rahman RA, Rajion ZA, Abdullah J, Mohamad I. Orbital morphometry: a computed tomography analysis. J Craniofac Surg. 2017;28:e64–70.
doi: 10.1097/SCS.0000000000003218