title: [Retrosomatic spondylolysis of the 5th lumbar vertebra with segmentation disorder of the corresponding spinal arch].
abstract: Retrosomatic spondylolysis is a very rare type of neural arch defects. In typical cases the defect is a vertical cleft of the pedicle, which is thought to be the result of two ossification centers. The authors present a case of retrosomatic spondylolysis with a segmentation defect of the corresponding vertebral arch structures. The follow-up of this child from age 7 to 12 seems to be proof for this defect to be a fatigue fracture quite similar to those in isthmic spondylolysis.
mesh_terms: D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008159:Lumbar Vertebrae / Q000002:abnormalities / Q000000981:diagnostic imaging*; D013168:Spondylolisthesis / Q000000981:diagnostic imaging*; D013169:Spondylolysis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
vernacular_title: Retrosomatische Spondylolyse des 5. Lendenwirbels mit Segmentationsstörung des zugehörigen Wirbelbogens.