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Intervertebral disk material: criteria for determining probable prolapse.

N Weidner1, D T Rice

  • 1Department of Pathology, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts 02115.

Human Pathology
|April 1, 1988
PubMed
Summary
This summary is machine-generated.

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Histologic examination can identify prolapsed intervertebral discs. Edge neovascularization in fibrocartilage fragments is a key indicator of disc prolapse, distinguishing it from non-prolapsed material.

Area of Science:

  • Spinal Surgery
  • Histopathology
  • Orthopedic Research

Background:

  • Distinguishing prolapsed from non-prolapsed intervertebral disc material histologically is crucial for diagnosis.
  • Current histological markers for disc degeneration and prolapse lack definitive discriminatory power.

Purpose of the Study:

  • To establish reliable histologic criteria for differentiating prolapsed intervertebral disc (IVD) tissue from non-prolapsed tissue.
  • To identify specific histological features indicative of intervertebral disc prolapse.

Main Methods:

  • Histologic analysis of curetted fibrocartilage from 100 patients with documented disc prolapse.
  • Comparison with histologic features of 40 intervertebral discs from 20 autopsy controls without prolapse.

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Main Results:

  • Edge neovascularization was observed in 50% of prolapsed disc specimens, and none of the control specimens (p = 0.0004).
  • Histologic features like fibrillation, chondrocyte cloning, and granular change were not effective in distinguishing prolapsed from non-prolapsed discs.
  • Edge neovascularization demonstrated 50% sensitivity as a diagnostic indicator in this series.

Conclusions:

  • Edge neovascularization of fibrocartilage fragments is proposed as the sole reliable histologic indicator of intervertebral disc prolapse.
  • Further research may be needed to improve the sensitivity of this diagnostic marker.