Background: Mandibular fractures usually involve one
or multiple sites with different patterns which depend on
various factors such as the force applied, type of injury, in
addition to the morphological and anatomical characteristics
of the mandible. Few studies proved a relationship between
mandibular angle measurement and fractures in the angle region.
In this study, we looked through the ties of gonial
angle measurement and all associated ipsilateral mandibular
fractures.
Objective: To investigate weather gonial angle measurement
would be one predictor to the location of mandibular
fractures.
Method: This retrospective cohort study included patients
diagnosed with mandibular fractures between 2018 and 2023.
100 cases were randomly selected. The gonial angle was measured
using 3D C.T. scans. Fracture patterns were categorized
into two groups: Group A (Angle region) and Group B (Not
Angle region).
Results: The mean gonial angle in patients with fractures
in the angle region was 125 degrees, compared to 117 degree
in patients with fractures in the non-angle region, which was a
statistically significant difference (p < 0.001).
Conclusion: The mandibular gonial angle is a powerful
determinant factor affecting the mandibular fracture pattern.
The stronger and less obtuse mandibular angle the more
likely a fracture pattern to spare the angle region.