Stefan Gherasimescu, Mihai Liviu Ciofu, Otilia Boişteanu, Daniela Sulea, Petrica-Florin Sava, Vasile-Deniss Mereuta, Ionel Daniel Cojocaru, Victor-Vlad Costan
Aim of study. This study aimed to measure orbits to determine asymmetry between the right and left orbit and the gender-specific and age-specific changes to the bony orbit using area, volume, perimeter.
Materials and method. This retrospective observational study aimed to evaluate orbital asymmetry using Computed Tomography (CT) measurements. Patients were retrospectively and randomly selected from all patients who underwent CT of the head during this period. Of the patients included, 46 were males (45,2%) and 38 were females (54,8%); 37 – age group 40-60 (44%),47 -age group > 60 (56%). The mean age was 62,06 years, with a range from 41 to 85 years. 84 CT images were selected, which were acquired between 01/2024 and 12/2024. All images were acquired with CT scanner from Siemens Healthineers (Erlangen, Germany). The three-dimensional (3D) medical imaging software “Biotronics 3D” was used for CT visualisation. Orbital asymmetry was calculated by comparing the corresponding parameters of the right and left orbits for area, volume and perimeter. We classified the differences into degrees of asymmetry – slight, mild, and medium – based on the interquartile ranges we calculated. Results. For area, the mean values were nearly identical (9.85 cm² for the left orbit and 9.86 cm² for the right orbit), with no statistically significant difference (p = 0.726). Likewise, the volume presented comparable mean values (1.83 cm³ for the left orbit and 1.84 cm³ for the right orbit), without significant differences (p = 0.831). Regarding perimeter, although the left orbit had a slightly higher mean value (127.20 mm) compared to the right orbit (126.44 mm), the difference was not statistically significant (p = 0.098). Conclusions. This study proved the high degree of symmetry between the two orbits in terms of area, volume, and perimeter, suggesting that the healthy, mutual orbit can be considered a planning basis for accurate orbital reconstructions by Titanium mesh. The analysis of the relationship between asymmetry differences and age revealed distinct patterns, with weak, non-significant positive association for area, volume asymmetry tends to increase slightly as age advances, while perimeter asymmetry tends to decrease with increasing age.
DOI : 10.62610/RJOR.2025.1.17.45
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