Clinical anatomy of the orbitomeningeal foramina: variational anatomy of the canals connecting the orbit with the cranial cavity.
Purpose: In addition to the optic canal and the superior orbital fissure, orbits are connected with the cranial cavity via inconstant canals including the orbitomeningeal foramen. This study has been carried out in order to define many anatomical and radiological details of the orbitomeningeal foram...
| Publicado en: | Surgical & Radiologic Anatomy Vol. 38; no. 2; pp. 165 - 178 |
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| Autores principales: | , , , , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Mar2016
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=113041166&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 113041166 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09301038 O1L jtl: Surgical & Radiologic Anatomy issn: 09301038 maglogo: N pubinfo: dt: Mar2016 vid: 38 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 113041166 10.1007/s00276-015-1530-8 113041166 ppf: 165 ppct: 13 formats: fmt: @attributes: type: P tig: atl: Clinical anatomy of the orbitomeningeal foramina: variational anatomy of the canals connecting the orbit with the cranial cavity. aug: au: Macchi, Veronica Regoli, Marì Bracco, Sandra Nicoletti, Claudio Morra, Aldo Porzionato, Andrea Caro, Raffaele Bertelli, Eugenio affil: Department of Molecular Medicine, Institute of Human Anatomy, University of Padova, Via A. Gabelli 65 35127 Padua Italy sug: ab: Purpose: In addition to the optic canal and the superior orbital fissure, orbits are connected with the cranial cavity via inconstant canals including the orbitomeningeal foramen. This study has been carried out in order to define many anatomical and radiological details of the orbitomeningeal foramen that are relevant in the clinical practice. Methods: Almost 1000 skulls and 50 computerized tomographies were examined to determine incidence, number, length, and caliber of the orbitomeningeal foramen as well as the topography of their orbital and cranial openings. A retrospective study of angiographies carried out on more than 100 children was performed to look for arteries candidate to run through the orbitomeningeal foramen. Results: Orbitomeningeal foramina were detected in 59.46 % of skulls and in 54 % of individuals by computerized tomography. Orbits with two to five foramina were found. Canals were classified as M-subtype or A-subtype depending on their cranial opening. Large foramina, with the caliber ranging between 1 and 3 mm, were found in 12.17 % of orbitomeningeal foramen-bearing orbits. By computed tomography the average caliber measured 1.2 ± 0.3 and 1.5 ± 0.5 mm ( p < 0.005) at the orbital and cranial openings, respectively ( p < 0.005). Angiographies showed meningo-lacrimal and meningo-ophthalmic arteries, meningeal branches of the lacrimal and supraorbital arteries, and some unidentified arteries that could pass through the orbitomeningeal foramina. Conclusions: Orbitomeningeal foramina are a common occurrence. When large they may house important arteries that can be the source of severe bleedings during deep dissection of the lateral wall of the orbit. Orbital surgeons should be aware of their existence. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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