Presentation
Pedestrian hit by car.
Patient Data
Age: 35 years
Gender: Female
From the case:
Type 1 C2 odontoid fracture
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Info
Avulsion fracture of the left aspect of the tip of the odontoid process of C2. The base of the odontoid process is intact. Normal alignment of the atlanto-axial joints. No occipital condyle or C1 lateral mass fracture.
Case Discussion
Type 1 fracture of the odontoid process according to the Anderson and D'Alonzo classification. The fracture is the least common type and involves the odontoid process above the level of the transverse band of the cruciform ligament.
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