ABSTRACT
Traumatic lesions involving the occipital condyles and their ligamentous structures
are infrequently seen in neurosurgical practice. The clinical spectrum of these injuries
is vast and varies from the highly unstable occipitocervical dislocation to relatively
insignificant and uncomplicated occipital condyle fractures.
These injuries can be very difficult to diagnose on plain films. A high index of suspicion
and a low threshold for further definitive imaging is warranted. Significant closed
head injuries, lower cranial nerve deficits, brainstem dysfunction, and other cervical
spine fractures have been associated with C0 trauma. Thin-section computed tomography
(CT) with coronal and sagittal reformatting of the craniocervical junction should
be considered as the minimum standard of care in these patients. In patients in which
occipital injury is clinically suspected and CT is inconclusive, magnetic resonance
imaging (MRI) is indicated. Occipital condyle fractures can generally be treated by
external immobilization, whereas occipitocervical dislocations mandate immediate rigid
external immobilization followed by early occipitocervical fixation and fusion.
KEYWORDS
Occipitocervical dislocation - occipital condyle fracture - occipitocervical fusion