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Related Experiment Videos

Intravertebral disk herniations: cartilaginous (Schmorl's) nodes.

D Resnick, G Niwayama

    Radiology
    |January 1, 1978
    PubMed
    Summary

    Schmorl's nodes involve intervertebral disc material prolapsing into vertebral bodies. Various conditions weakening vertebral structures can cause these nodes, identifiable via distinct radiographic features.

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    Area of Science:

    • Orthopedics
    • Radiology
    • Pathology

    Background:

    • Schmorl's nodes represent intervertebral disc material prolapsing into the vertebral body.
    • These nodes arise from weakening of the vertebral endplate or subchondral bone.

    Purpose of the Study:

    • To describe the etiology, pathogenesis, and radiographic findings of Schmorl's nodes.
    • To differentiate Schmorl's nodes from other vertebral anomalies.

    Main Methods:

    • Review of literature on Schmorl's nodes.
    • Analysis of radiographic features associated with Schmorl's nodes.

    Main Results:

    • Schmorl's nodes can result from juvenile kyphosis, trauma, metabolic disorders, neoplastic disorders, and degenerative disc disease.
    • Radiographic findings include vertebral outline indentations, radiolucencies, and sclerosis.
    • These features distinguish Schmorl's nodes from "butterfly", "fish", and "H" vertebrae.

    Conclusions:

    • Schmorl's nodes are a common finding with diverse underlying causes.
    • Radiographic evaluation is key to identifying and differentiating Schmorl's nodes from other vertebral pathologies.

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