Related Experiment Video
Updated: Aug 15, 2025
Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury
Published on: January 20, 2023
Occipital condyle fracture caused by minor head trauma
Seiya Hayashi1, Michiari Umakoshi1, Masatoshi Yunoki1
1Department of Neurosurgery, Kagawa Rosai Hospital, Marugame City, Japan.
Background:
Occipital condyle fractures (OCF) are commonly identified in patients suffering from severe craniocerebral trauma. Here, we present a 57-year-old male whose computed tomography (CT)-documented atlanto-occipital dislocation (AOD), due to just minor trauma was successfully managed with bracing alone.
Case Description:
A 57-year-old male presented with the right upper neck pain following a motor vehicle accident. The screening cervical CT scan revealed a fracture of the right occipital condyle, while the subsequent dynamic X-rays showed no instability or AOD. The patient was treated with a hard cervical collar, and over the next 6 months, remained asymptomatic. The 6-month repeat craniocervical CT scan additionally confirmed spontaneous fusion at the fracture site.
Conclusion:
Patients who have sustained even mild craniocervical trauma may develop AOD attributed to an OCF. It is critical to screen these patients early with CT and X-ray studies so they can be successfully managed with bracing alone, and avoid the need for surgery to address the delayed onset of instability.
Related Concept Videos
01:14Cranial Bones: Superior and Posterior View
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
01:27Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...