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Related Experiment Videos

Ventral sacroiliac ligament. Anatomic and pathologic considerations

S Jaovisidha1, K N Ryu, M De Maeseneer

  • 1Department of Radiology, Veterans Affairs Medical Center, San Diego, California.

Investigative Radiology
|August 1, 1996
PubMed
Summary

The ventral sacroiliac ligament (VSL) is visualized on MRI and CT scans as a distinct structure. Imaging findings correlate with histologic analysis, aiding in the diagnosis of VSL abnormalities.

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Area of Science:

  • Radiology
  • Anatomy
  • Histology

Background:

  • The ventral sacroiliac ligament (VSL) stabilizes the sacroiliac (SI) joint.
  • No prior studies have detailed VSL imaging characteristics.

Purpose of the Study:

  • To determine the imaging appearance of the normal and abnormal VSL.
  • To correlate imaging findings with anatomic and histologic data.

Main Methods:

  • MRI and CT scans of cadaveric SI joints were analyzed.
  • Anatomic dissection and histologic correlation were performed.
  • Abnormal VSL cases were reviewed.

Main Results:

  • The VSL-anterior capsular complex appears as a hypointense structure on MRI.

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  • Imaging could not distinguish VSL from the anterior capsule, but histology could.
  • Disease processes affecting the VSL show characteristic imaging changes.

    • Conclusions:

    • VSL can be identified using advanced imaging techniques.
    • Imaging findings of the VSL correlate with histologic features.
    • This study provides a basis for diagnosing VSL abnormalities.