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Imaging in Foot and Ankle Instability.

Peter Salat1, Vu Le2, Andrea Veljkovic2

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Foot and Ankle Clinics
|November 12, 2018
PubMed
Summary

This review highlights MRI and ultrasound imaging for diagnosing foot and ankle ligament injuries. It details anatomical structures and pathological findings crucial for assessing instability.

Keywords:
Ankle instabilityDeltoid ligamentFlat footLateral ankle ligamentLigament tearPes planusSpring ligamentTurf toe

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Area of Science:

  • Radiology
  • Orthopedics
  • Medical Imaging

Background:

  • Ligamentous injuries are common causes of foot and ankle instability.
  • Accurate diagnosis is essential for effective treatment and patient outcomes.
  • Conventional radiography has limitations in evaluating soft tissues like ligaments.

Purpose of the Study:

  • To review the imaging modalities for diagnosing foot and ankle ligamentous instabilities.
  • To present a pictorial review of key anatomical structures and their pathologies.
  • To emphasize the role of MRI and ultrasound in assessing foot and ankle instability.

Main Methods:

  • Review of relevant literature on foot and ankle imaging.
  • Pictorial presentation of normal anatomy of medial and lateral ankle ligaments, syndesmosis, spring ligament, Lisfranc complex, hallux sesamoid complex, and lesser toe plantar plate on MRI.
  • Presentation of selected cases illustrating ligamentous pathology causing instability.
  • Discussion of the utility of MRI and ultrasound in clinical practice.

Main Results:

  • Detailed MRI anatomy of critical foot and ankle ligaments is presented.
  • Common ligamentous pathologies leading to instability are illustrated with imaging examples.
  • The complementary roles of MRI and ultrasound in diagnosing various instabilities are discussed.

Conclusions:

  • MRI and ultrasound are invaluable tools for evaluating foot and ankle ligamentous instabilities.
  • Understanding the detailed anatomy and common pathologies on these imaging modalities is crucial for accurate diagnosis.
  • Imaging assessment significantly aids in guiding treatment strategies for foot and ankle instability.