Table of Contents
Advances in Anatomy
Volume 2015 (2015), Article ID 101438, 10 pages
http://dx.doi.org/10.1155/2015/101438
Research Article

Morphometry of the Orbit in East-European Population Based on Three-Dimensional CT Reconstruction

1Department of Otorhinolaryngology, Mazovian Hospital in Brodno, Center of Postgraduate Medical Education, 8 Kondratowicza Street, 03-242 Warsaw, Poland
2Institute of Rheumatology, Outpatient Department, 1 Spartańska Street, 02-637 Warsaw, Poland
32nd Department of Clinical Radiology, Warsaw Medical University, 1a Banacha Street, 02-097 Warsaw, Poland
4Military Institute of Aviation Medicine, 54/56 Krasińskiego Street, 01-755 Warsaw, Poland
5Department of Paediatric Otorhinolaryngology, Medical University of Warsaw, 63A Żwirki i Wigury Street, 02-091 Warsaw, Poland
6Department of Descriptive and Clinical Anatomy, Center of Biostructure Research, Medical University of Warsaw, 5 Chałubińskiego Street, 02-004 Warsaw, Poland
7Head and Neck Department, Maria Sklodowska-Curie Memorial Institute and Oncology Centre, 5 Roentgena Street, 02-781 Warsaw, Poland
8Faculty of Health Sciences, Ludwik Rydygier Collegium Medicum, Nicolaus Copernicus University, 13-15 Jagiellońska Street, 85-067 Bydgoszcz, Poland

Received 15 May 2015; Revised 8 September 2015; Accepted 30 September 2015

Academic Editor: Luis-Alfonso Arráez-Aybar

Copyright © 2015 Stanisław Nitek et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives. To determine safe distances within the orbit outlining reliable operative area on the basis of multislice computed tomography (MSCT) scans. Patients and Methods. MSCT of orbits of 50 Caucasian patients (26 males and 24 females, mean age 56) were analysed. Native scans resolutions were in all cases 0.625 mm. Measurements were done in postprocessing workstation with 2D and 3D reconstructions. The safe distances values were calculated by subtracting three standard deviations from the arithmetical average . This method was chosen because this range covers 99.86% of every population. Results. The results of the measurements in men and women, respectively, are as follows (1) distance from optic canal to supraorbital foramen, mean 46,49 mm and 43,29 mm, (2) distance from the optic canal to maxillozygomatic suture at the inferior margin of the orbit mean 45,24 mm and 42,8 mm, (3) distance from the optic canal to frontozygomatic suture 46,15 mm and 43,58 mm, (4) distance from the optic canal to anterior lacrimal crest 40,40 mm and 38,39 mm, (5) distance from superior orbital fissure to the frontozygomatic suture 34,06 mm and 32,62 mm, and (6) distance from supraorbital foramen to the superior orbital fissure 42,32 mm and 39,39 mm. Conclusion. The most probable safe distances calculated by adopted formula were for the superior orbital fissure 23,39–30,58 mm and for the orbital opening of the optic canal 31,9–38,0 mm from the bony structures of the orbital entrance depending on the orbital quadrant.