Accurate Course and Relationships of the Intraorbital Part of the Ophthalmic Artery in the Sagittal Plane

Erdoğmuş, Senem; Gövsa, Figen

doi:10.1055/s-2007-985862

Cited by 19 publications

(18 citation statements)

References 30 publications

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“…common trunk with the PEA in the remaining cases. 24 We found a common trunk with the PEA in 14% of the cases. The muscular arteries arise from the inferior surface of the OA.…”

Section: Vascular Structuresmentioning

confidence: 64%

Surgical Anatomy of the Medial Wall of the Orbit in 14 Human Cadavers

et al. 2016

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Objective?The aim of our study is to present the anatomical landmarks to perform an endoscopic endonasal approach to the medial wall of the orbit (EEAMO). Material and Methods?We performed 14 complete nasal and orbital endoscopic dissections in 7 adult cadaveric heads. Results?The EEAMO provides a surgical corridor between the medial rectus muscle superiorly and the inferior rectus muscle inferiorly .The mean distance between the ethmoidal crest and medial rectus muscle was 1.5 cm (range, 1.3?1.9 cm). The width of the medial rectus muscle was 1.2 cm (range, 1?1.5 cm). The main vascular structure in this retrobulbar space was the ophthalmic artery that crosses over the optic nerve in 86% of the cases. In its intraorbital route, the anterior ethmoidal artery and the ethmoidal nerves were situated inferior to the superior oblique muscle in all cases. The posterior ethmoidal artery was found superior to it. We could identify the inferior division of the oculomotor nerve in this surgical approach. Conclusions?The EEAMO allows adequate exposure of the space between the medial rectus muscle and the inferior rectus muscle. The location of the ethmoidal crest of the palatine bone, and its relationship with the medial rectus muscle, is a useful anatomical landmark for this surgical approach.

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“…common trunk with the PEA in the remaining cases. 24 We found a common trunk with the PEA in 14% of the cases. The muscular arteries arise from the inferior surface of the OA.…”

Section: Vascular Structuresmentioning

confidence: 64%

Surgical Anatomy of the Medial Wall of the Orbit in 14 Human Cadavers

et al. 2016

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“…Likewise, neither Tucker and Lambert nor Ducasse et al reported a triglandular supply. This suggests that the third branch observed by Erdogmus and Govsa (2005) was not a branch of the lacrimal artery, but the inferomedial muscular trunk identified in their later studies (Erdogmus and Govsa, 2007). In either event, this variant has little clinical significance for the lacrimal gland and the classification typology should be changed to a branched-unbranched dichotomy.…”

Section: Discussionmentioning

confidence: 94%

“…During these procedures, inadvertent injury to the lacrimal artery can prolong surgery with an increased risk for postoperative morbidity, cause lifelong keratoconjuctivitis sicca, and even cause weakness in a number of extraocular muscles including the superior oblique, superior rectus, lateral rectus, and medial rectus with severe diplopia (Erdogmus and Govsa, 2007). This is disconcerting as there numerous indications for lateral orbit surgery including fractures, tumors and aneurysms.…”

Section: Introductionmentioning

confidence: 99%

“…This is disconcerting as there numerous indications for lateral orbit surgery including fractures, tumors and aneurysms. During these procedures, inadvertent injury to the lacrimal artery can prolong surgery with an increased risk for postoperative morbidity, cause lifelong keratoconjuctivitis sicca, and even cause weakness in a number of extraocular muscles including the superior oblique, superior rectus, lateral rectus, and medial rectus with severe diplopia (Erdogmus and Govsa, 2007). Lacrimal gland tumors in particular make up 10% of all space-occupying orbital tumors and these lesions often require embolization and resection.…”

Section: Introductionmentioning

confidence: 99%

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Clinical considerations of the glandular branch of the lacrimal artery

et al. 2015

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The lacrimal artery is classically described as a branch of the ophthalmic artery supplied by the internal carotid. In this study, 25 orbits were dissected to identify variations in glandular branching and to compare them to previously published accounts. The glandular branching patterns of the lacrimal artery fall into two categories, those that branch (56%) and those that do not branch (44%). We found the medial and lateral glandular branches to be equal in diameter with a divergence of 2.67-40.58 mm proximal to the gland parenchyma. The long glandular branches run alongside the superolateral aspect of the orbit. The lateral branch runs lateral to the lateral rectus muscle. The medial branch runs superomedial to the lateral rectus muscle and lateral to the superior rectus muscle. In relation to the lacrimal gland, the medial branch enters the superior aspect of the gland parenchyma and the lateral branch enters its inferior aspect. The average branch lengths were 17.88 mm (medial) and 13.51 mm (lateral) as measured with a Mitutoyo Absolute 1/100 mm caliper. We could not confirm the existence of a third branch supplying the lacrimal gland, as posited by other authors. The key finding in this study is that the lacrimal gland is predominantly supplied by two significant arterial branches, both of which must be identified during procedures involving the lateral orbit.

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“…Therefore, the average diameter was assessed with a much higher accuracy. There is a high interindividual variability of course and outlets of the ophthalmic artery along its way through the orbit [9].…”

Section: Colour Doppler Imagingmentioning

confidence: 99%