Study Design   Retrospective chart review and review of literature. Objective   Few case reports of traumatic L5-S1 displacement have been presented in the literature. Here we present two cases of traumatic spondylolisthesis showing both anterior and @entity572 , the treatment algorithm, and a review of the literature. Methods   The authors conducted a retrospective review of representative @entity1 and a literature review of traumatic spondylolisthesis at the L5-S1 junction. Two representative @entity1 were identified with traumatic spondylolisthesis: one with an @entity4785 , and the other with a posterior dissociation. Results   Radiographic, computed tomography, and magnetic resonance imaging illustrated the bony and soft tissue injury found in each @entity1 , as well as the final stabilization and outcomes. Operative stabilization was necessary, and both @entity1 were treated with open reduction internal fixation. The @entity1 with posterior dissociation had complete recovery without neurologic sequelae. The @entity1 with @entity4785 had persistent bilateral L5-S1 @entity614 with @entity16 . Conclusions   Few cases of traumatic spondylopelvic dissociation that are isolated to the L5-S1 disk space are described in the literature. We examined both an anterior and a posterior dissociation and treated both with L5-S1 posterior spinal fusion. The @entity1 with @entity4785 had persistent L5-S1 root injury; however, the @entity1 with posterior dissociation had no @entity51 . This is the opposite of what is expected based on anatomy. These cases offer insight into the management of anterior and posterior L5-S1 spondylopelvic dissociation.

XXXX : A Report of Two Cases of Spondylolisthesis at L5-S1 and Review of Literature.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity4785 :: ('MESH:D004213', 'Disease') :: ['anterior dissociation'] @entity16 :: ('MESH:D009422', 'Disease') :: ['intact rectal tone, due to neurologic compression'] @entity51 :: ('MESH:D009461', 'Disease') :: ['neurologic deficits'] @entity572 :: ('MESH:D006617', 'Disease') :: ['posterior displacement'] @entity614 :: ('MESH:D011843', 'Disease') :: ['radiculopathy']
@entity4785 :: (MESH:D004213,Disease) :: ['Traumatic Spondylopelvic Dissociation']
