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Adrenoleukodystrophy
Joseph Junewick, MD FACR
over 4 years ago
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Bilateral L3 Spondylolysis

Case Detail

Anatomy: Musculoskeletal
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Trauma
Created: over 4 years ago
Updated: over 4 years ago
Tags: PEDS
Modality/Study Types: CT
Activities:
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History

Teenager with back pain.


Case Images


Diagnosis

Bilateral L3 Spondylolysis

Findings

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

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.

Reference

Ulmer JL, Mathews VP, Elster AD, et al. Lumbar Spondylolysis without Spondylolisthesis: Recognition of Isolated Posterior Element Subluxation on Sagittal MR. AJNR (1995); 16:1393–1398.



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