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MR of disc protrusion engendered by infectious spondylitis

J R Jinkins1, C Bazan, L Xiong

  • 1Department of Radiology, University of Texas Health Science Center at San Antonio 78284-7800, USA.

Journal of Computer Assisted Tomography
|September 1, 1996
PubMed
Abstract

Insights

Intervertebral disc infection can cause disc protrusion, leading to spinal canal compromise. Staphylococcus aureus is a common cause, potentially secreting hyaluronidase to facilitate protrusion.

Area of Science:

  • Spinal imaging
  • Infectious diseases
  • Neurosurgery

Background:

  • Intervertebral disc infections can lead to significant spinal pathology.
  • The formation of perispinous or epidural masses is a concern in disc infections.

Purpose of the Study:

  • To investigate whether infection-related disc protrusion is a component of epidural masses in patients with intervertebral disc infection.
  • To explore the correlation between disc infection and posterior disc protrusion.

Main Methods:

  • Retrospective review of 16 consecutive patients with intervertebral disc space infection.
  • Gadolinium-enhanced MRI was used to assess disc protrusion and spinal canal compromise.

Main Results:

  • Disc protrusion was observed in combination with disc space infections.
  • 12 out of 16 patients showed both posterior and anterior disc protrusions.
  • Staphylococcus aureus was the most common pathogen identified (14 patients).

Conclusions:

  • Disc protrusion is a significant factor in spinal canal compromise during disc infections.
  • Bacterial factors, like hyaluronidase from Staphylococcus aureus, may contribute to focal disc protrusion.
  • Recognizing infection-related disc fragments is crucial for managing spinal canal compromise.

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