Three-Dimensional Globe Repositioning Following Orbital Reconstruction Independent of Bony Landmarks and Fracture...

Orbital fractures account for up to 16% of all facial fractures. Surgical intervention for these fractures depends on several factors, including globe displacement. This case-control study aimed to quantify the effects of orbital reconstruction on the three-dimensional globe position after orbital trauma. Pre- and post-operative radiological data of 29 cases (27 patients, with two patients requiring reintervention) with an orbital fracture were analyzed. The contralateral, unaffected orbits of the same patients served as the control group. This study used a recently validated method employing semi-automatic registration algorithms to measure globe displacement after trauma and its post-operative change. The statistical analysis, performed using the Mann-Whitney U test, showed significant globe position restoration in the anterior-posterior (2.15 mm, p ≤ 0.001) and medial-lateral (1.34 mm, p ≤ 0.001) directions, as well as in overall three-dimensional Euclidean distance (3.04 mm, p = 0.014) after surgery. The repositioning was clinically relevant in 62% of the cases, indicating that the three-dimensional globe repositioning was 2 mm or more with a positive clinical impact. Additionally, it was important to note that both the number of fractured walls and fractures of the inferomedial strut significantly affected globe repositioning after trauma. This finding highlights the importance of accurately considering the fracture pattern in surgical planning, as a better understanding of globe displacement following orbital trauma could enhance patient selection, surgical planning, and clinical outcomes.