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Inner Ear Dysplasia
Joseph Junewick, MD FACR
over 8 years ago
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Case History

Teenager with back pain.

Case Detail

Anatomy: Musculoskeletal
Joseph Junewick, MD FACR
Diagnostic Category: Trauma
Created: over 5 years ago
Updated: over 5 years ago
Tags: PEDS
Modality/Study Types: CT
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Case Images

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Reveal Findings

CT – Axial and sagittal and coronal reformats show bilateral irregular linear defects in the posterior elements of L3.

Reveal Discussion

Spondylolysis is a common defect of the par interarticularis, mostly occurring at L5 (90-95%). Defects may be congenital or related to hyperextension microfractures. Spondylolysis may heal by fibrous or osseous fusion although nonunion/pseudojoint formation also occur. Lumbar curvatures, muscle imbalance and ligamentous laxity contribute to spinal malalignment (spondylolisthesis) and worsening pain from foraminal and spinal nerve distortion, degenerative disc and facet disease.

Reveal Diagnosis

Bilateral L3 Spondylolysis

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