Medial Orbital Wall Landmarks in Three Different North American Populations

Autor:	Milap P. Mehta, Julian D. Perry
Rok vydání:	2015
Předmět:	Adult Male Anterior lacrimal crest Adolescent White People medicine Humans Aged Aged 80 and over Medial orbital wall Anthropometry Optic canal business.industry Posterior ethmoidal foramen Skull Ethmoid bone Anterior ethmoidal foramen Anatomy Middle Aged Black or African American Africa Western Ethmoid Bone Ophthalmology medicine.anatomical_structure Inuit Female Anatomic Landmarks business Orbit Orbit (anatomy)
Zdroj:	Orbit. 34:72-78
ISSN:	1744-5108 0167-6830
Popis:	We sought to measure the medial orbital wall foramina distances in two previously unstudied populations, to describe a new bony medial wall feature, and to validate the accuracy of a new coordinate measurement device within the orbit.Dried, well-preserved, complete human skulls without orbital defects were studied. Age, gender, birthplace, ethnicity, and laterality of the orbit were recorded for each skull. Supranumerary ethmoidal foramina were recorded, and the fronto-ethmoidal groove depth was measured. The distances between the anterior lacrimal crest (ALC) - anterior ethmoidal foramen (AEF), AEF - posterior ethmoidal foramen (PEF), and PEF - optic canal (OC) were measured first by surgical ruler and wire and then by the Microscribe coordinate measurement device.One hundred and forty-six orbits were studied. Fifty-seven orbits were of European or Caucasian descent, 68 orbits of African American descent, 2 orbits of West African descent, 11 orbits of Eskimo descent, and 8 orbits of unknown origin. No significant differences existed between the manual and Microscribe measurements for the ALC-AEF, AEF-PEF, and PEF-OF distances (p 0.0001). A significant frontoethmoidal groove was observed in 27/146 (19%) orbits, in 6/57 (11%) Caucasian orbits, in 17/70 (24%) African American orbits, and in 4/11 (36%) Eskimo orbits. Supranumerary ethmoidal foramina were found in 50/146 orbits (34.2%) and in 17/27 (63%) orbits with a significant frontoethmoidal grooves.No significant differences in medial wall foramina distances exist between African American and Caucasian orbits; however, a frontoethmoidal groove occurs more commonly in African American orbits. This groove often occurs in the presence of supernumerary ethmoidal foramina. The Microscribe coordinate measurement system represents a valid tool to measure distances within the orbit.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d87cdbbf54f8fe7d05f87c56c284de95 https://doi.org/10.3109/01676830.2014.997394 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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