Effects of infraorbital nerve's anatomical course on fracture pattern of the orbital floor

In this study, details of the infraorbital nerve's (ION's) anatomical course variants were compared using computed tomography (CT) and relationships between the variants and fracture patterns in the orbital floor were investigated. Fifty-two normal individuals and 50 patients with unilateral isolated orbital floor fractures were enrolled in this study. Four measurements in normal individuals and 5 measurements in fracture patients were obtained in parasagittal sections. The anatomical variations of the ION were categorized into 3 types based on the classification by Ferences et al.