Ultrasound tutorial – Imaging of the deltoid ligament

Deltoid Ligament Ultrasound – Technique and Findings

Positioning

• Lateral decubitus

Ultrasound probe for the Deltoid

• Hockey stick probe
  • Easiest to position
  • Good resolution
• High frequency linear probe
  • Larger field of view
  • Sometimes difficult to position optimally

Normal Appearance

• Consistent thickness
• Fascicular architecture with areas of the increased echogenicity (fat interspersed in the ligament)

Pathology

• Sprain
  • Hypoechoic
  • Thickened
  • Loss of fascicular architecture
• Tear
  • Partial/full thickness
    • Fluid (anechoic) extends into the tear