Significant Foot Injuries

Question 1

Describe the Lisfranc ligament.

Answer 1

• Lisfranc ligament is between the medial cuneiform and base of 2nd metatarsal
• Strongest part of TMT joint is 2nd TMT joint which is
recessed between medial and lateral cuneiforms

Question 2

What is the usual mechanism of a Lisfranc fracture dislocation?

Answer 2

• Usually high energy injuries e.g. RTA, crush injuries,

falls from height

Question 3

What imaging is required in a Lisfranc fracture dislocation?

Answer 3

• Xray: AP, Lat & Oblique
• 2nd & 4th MT bases align with medial Border of
  middle cuneiform & cuboid

Question 4

What is the main risk of a talus fracture?

Answer 4

Risk of AVN from talar neck fractures (urgent surgery)