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Fig. 3 | Journal of Medical Case Reports

Fig. 3

From: Posterior lumbar interbody fusion for dysplastic lumbar spondylolisthesis with high-grade slippage in two adolescent siblings: two case reports

Fig. 3

Lateral-view functional plain X-ray in the younger brother showing slight instability between L5 /S1 flexion and extension (a, b). MRI revealed that the L5 vertebra had slipped anteriorly on S1 and canal stenosis was present at L4/5 and L5/S1 with disc bulging (c–e). Computed tomography with myelogram showed a vertically displaced anterior slip to S1, a round-shaped S1 cranial endplate and spinal canal stenosis (arrow) with dysplastic bilateral facets at L5/S1 and unilateral pars defect of the right inferior articular process of L5 (arrows) (f, g)

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Journal of Medical Case Reports

ISSN: 1752-1947