|Findings: Radiolucent defect in articular pillar of L5 and miminal anterolisthesis. Spina bifida occulta L5.|
|Discussion: There is an increased incidence of L5 spondylolysis when spina bifida is present, leading to the erroneous conclusion that the separation in the pars interarticularis is also a "congenital defect". While some congenital predisposition to spondylolysis may occur due to inherited morphological characteristics of the posterior elements, the overwhelming majority of pars separations are acquired as stress fractures during childhood and adolescence. Autopsy studies of newborns have failed to show congenital lumbar spondylolysis.|
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Case Number: 7168214Last Updated: 11-17-2006 The reader is fully responsible for confirming the accuracy of this content.
The reader is fully responsible for confirming the accuracy of this content.