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Anterior lumbosacral dislocation: case report and review of the literature
P H Roche1, H Dufour, N Graziani
1Service de Neurochirurgie, CHU La Timone, Marseille, France.
Background:
Anterior lumbosacral dislocation is a rare traumatic anterior spondylolisthesis.
Methods:
We report a new case surgically treated and review the eight cases previously reported.
Results:
The mechanism of injury is hyperflexion-distraction. Neurological signs are inconsistent. Indirect radiological signs such as bilateral multiple transverse process fractures are strongly suggestive of the diagnosis. This complete soft tissue injury induces a definitive instability and requires an open reduction with posterior fixation.
Conclusions:
Suspicion of lumbosacral dislocation requires a computed tomography scan exploration with multiplanar reconstructions. Early reduction is associated with neurologic recovery. However, prognosis is correlated with the initial neurologic status and the severity of other associated injuries.