Dysplastic spondylolisthesis is defined as spondylolisthesis secondary to congenital abnormalities of the lumbosacral articulation, including maloriented or hypoplastic facets and sacral deficiency. Dysplastic spondylolisthesis is characterized by wedging of the L5 body and a rounding deformation of the sacrum surface on radiography; further, it has been suggested that these 2 anatomic factors play an important role in the development of a slip. However, some authors have stated that these changes should be considered as the consequences rather than the causes of the olisthetic process in adolescents with spondylolysis.
Citation: Ohashi M, Hirano T, Endo N, Uchiyama S (2014) The Development of Vertebral Deformities in a Preschool Child with Dysplastic Spondylolisthesis: A 16- Year Follow-Up. J Spine 3:156