A Cadaveric Study of the Morphometric and Geometric Relationships of the Orbital Apex

Abed, Saif F.; Shams, Pari N.; Shen, Sunny; Adds, Philip; Uddin, Jimmy

doi:10.3109/01676830.2010.538126

Cited by 15 publications

(2 citation statements)

References 8 publications

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“…4 ). These landmarks, correlations, and measurements are consistent with previously published studies [ 4 , 5 , 7 ].…”

Section: Methodssupporting

confidence: 92%

Optic foramen location on computed tomography

Nguyen,

Le,

Nguyen

et al. 2023

Arch Craniofac Surg

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Background: This study aimed to identify the location of the optic foramen in relation to the anterior sphenoid sinus wall, which is essential information for surgeons in planning and performing endoscopic transnasal surgery.Methods: Computed tomography scans of 200 orbits from 100 adult patients with no abnormalities were examined. The results included the location of the optic foramen in relation to the anterior sphenoid sinus wall and the distance between them, as well as the distance from the optic foramen and the anterior sphenoid sinus wall to the carotid prominence in the posterior sphenoid sinus.Results: The optic foramen was anterior to the anterior sphenoid sinus wall in 48.5% of orbits, and posterior in the remaining 51.5%. The mean distance from the optic foramen to the anterior sphenoid sinus wall was 3.82 ± 1.25 mm. The mean distances from the optic foramen and the anterior sphenoid sinus wall to the carotid prominence were 7.67 ± 1.73 and 7.95 ± 2.53 mm, respectively.Conclusion: The optic foramen was anterior to the anterior wall of the sphenoid sinus in approximately half of the orbits examined in this study, and posterior in the remaining half. The mean distance from the optic foramen to the anterior sphenoid sinus wall of the sphenoid sinus was 3.82 ± 1.25 mm.

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“…4 ). These landmarks, correlations, and measurements are consistent with previously published studies [ 4 , 5 , 7 ].…”

Section: Methodssupporting

confidence: 92%

Optic foramen location on computed tomography

Nguyen,

Le,

Nguyen

et al. 2023

Arch Craniofac Surg

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show abstract

“…Endoscopic transnasal approaches to the orbital apex have increased in popularity because of anatomic studies that confirmed their value. 6,7 Many of these studies show that endoscopic transnasal approaches to the medial and inferior orbital apex are feasible and safe with minimal neurovascular retraction. However, these studies do not explore further access to the lateral orbital apex via an endoscopic transnasal approach.…”

Section: Discussionmentioning

confidence: 99%

Anatomic Evaluation of Endoscopic Transnasal Transorbital Approach to the Lateral Orbital Apex

Kenyon

Antisdel

2014

Am J Rhinol�Allergy

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Endoscopic‐assisted transorbital extended orbital exenteration: A multi‐institutional preclinical study

Roccuzzo,

Vyskocil,

Hirtler

et al. 2024

Head & Neck

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BackgroundSinonasal malignancies with orbital invasion have dismal prognosis even when treated with orbital exenteration (OE). Sugawara et al. developed a surgical strategy called “extended‐OE (EOE),” showing encouraging outcomes. We hypothesized that a similar resection is achievable under endoscopic guidance through the exenterated orbit (endoscopic‐EOE).MethodsThe study was conducted in three institutions: University of Vienna; Mayo Clinic; University of Insubria; 48 orbital dissections were performed. A questionnaire was developed to evaluate feasibility and safety of each step, scoring from 1 to 10, (“impossible” to “easy,” and “high risk” to “low risk,” respectively), most likely complication(s) were hypothesized.ResultsThe step‐by‐step technique is thoroughly described. The questionnaire was answered by 25 anterior skull base surgeons from six countries. Mean, median, range, and interquartile range of both feasibility and safety scores are reported.ConclusionsEndoscopic‐EOE is a challenging but feasible procedure. Clinical validation is required to assess real‐life outcomes.

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A Cadaveric Study of the Morphometric and Geometric Relationships of the Orbital Apex

Cited by 15 publications

References 8 publications

Optic foramen location on computed tomography

Optic foramen location on computed tomography

Anatomic Evaluation of Endoscopic Transnasal Transorbital Approach to the Lateral Orbital Apex

Endoscopic‐assisted transorbital extended orbital exenteration: A multi‐institutional preclinical study

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