Type II atlas fracture

Case contributed by Dr Shailaja Muniraju

Presentation

History of hypertension with acute onset headache

Patient Data

Age: 63 years
Gender: Male
CT

There is a nondisplaced multisegmental fracture of the right occipital bone, extending up to the lateral border of foramen magnum bilaterally.

Nondisplaced fracture of the posterior arch of atlas noted on the right side. The atlanto-dental interspace appears normal.

Incidental bilateral ethmoidal, maxillary and ethmoidal mucosal changes are present. Left inferior turbinate hypertrophy is also noted.

CT

3 D images

Short arrows point towards the nondisplaced multisegmental fracture of the right occipital bone, extending up to the bilateral foramen magnum lateral borders.

Long arrows point towards the nondisplaced fracture of the right sided posterior arch of atlas -  Type II isolated posterior arch fracture.

Special thanks: Dr Madan Mohan Babu

Case Discussion

 

The Gehweiler classification divides fractures of the first cervical vertebra into five types. This is the most widely accepted classification. 

Description

Type I  fracture of the anterior arch

Type II  fracture of the posterior arch

Type III  combined fracture of both the anterior and the posterior arch (Jefferson fracture)

Type IV  fracture of massa lateralis

Type V  fracture of the transverse process

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Case information

rID: 50076
Case created: 17th Dec 2016
Last edited: 19th Dec 2016
Inclusion in quiz mode: Included

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