Sacral Stress Fracture following the Bone Union of Lumbar Spondylolysis

Figure 1

Reconstructed computed tomography (CT) scan of the lumbar spine from the first visit to a previous doctor’s office. (a) Right parasagittal reconstructed CT image. (b) Left parasagittal reconstructed CT image. (c) Axial CT image at L5 level. Fissures (black arrows) in the bilateral pars interarticularis of the L5 can be seen (a, b, c). These radiological findings indicated a bilateral spondylolysis of the L5.

(a)

(b)

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