DEX IOT DAY 4 TEST - MIDFOOT & FOREFOOT
EXAM (2026) QUESTIONS AND (elaborated)
WITH COMPLETE SOLUTIONS
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Terms in this set (74)
Where is the lisfranc joint? Spans the entire midfoot articulation with the
metatarsals
What is the keystone conformation? Connection between 2nd met and middle
cuneiform that provides stability to lisfranc joint
What does the lisfranc ligament Medial cuneiform to base of 2nd met
connect?
Three aspects of lisfranc ligament: Dorsal, interosseous, plantar
What makes up the lisfranc complex? 1st and 2nd met & medial and middle cuneiform
What type of injury typically causes Axial load
instability and gapping between
bones of lisfranc complex?
Which column of the foot has the Lateral column
most flexibility?
, What mechanisms of injury occur Direct or indirect, high energy or low energy
with lisfranc pathology?
What constitutes a direct injury? axial load with dorsal and plantar forces
What constitutes an indirect injury? Plantarflexed foot with axial load (heavy object
falling on foot- tarsals shift anterior or posterior)
What is necessary to diagnose Weightbearing x-ray
lisfranc injury?
What is a fleck sign? Avulsion fracture between 2nd met and medial
cuneiform
What type of lisfranc injuries do not Nondisplaced and stable
require surgery?
Lisfranc stability relies on ____ Ligamentous, bony
anatomy, while displacement relies
on _____ anatomy
What is a downside of fixing/fusing No micromotion - they can break
lisfranc injury with screws?
What is a benefit of lisfranc ORIF Plate fixation maintains stability without violating
with plates? the articular surface
What is ligamentous lisfranc Low energy injuries, mostly young adults and highly
augmentation (mini tightrope, active individuals
internal brace) typically indicated
for?
EXAM (2026) QUESTIONS AND (elaborated)
WITH COMPLETE SOLUTIONS
Save
Terms in this set (74)
Where is the lisfranc joint? Spans the entire midfoot articulation with the
metatarsals
What is the keystone conformation? Connection between 2nd met and middle
cuneiform that provides stability to lisfranc joint
What does the lisfranc ligament Medial cuneiform to base of 2nd met
connect?
Three aspects of lisfranc ligament: Dorsal, interosseous, plantar
What makes up the lisfranc complex? 1st and 2nd met & medial and middle cuneiform
What type of injury typically causes Axial load
instability and gapping between
bones of lisfranc complex?
Which column of the foot has the Lateral column
most flexibility?
, What mechanisms of injury occur Direct or indirect, high energy or low energy
with lisfranc pathology?
What constitutes a direct injury? axial load with dorsal and plantar forces
What constitutes an indirect injury? Plantarflexed foot with axial load (heavy object
falling on foot- tarsals shift anterior or posterior)
What is necessary to diagnose Weightbearing x-ray
lisfranc injury?
What is a fleck sign? Avulsion fracture between 2nd met and medial
cuneiform
What type of lisfranc injuries do not Nondisplaced and stable
require surgery?
Lisfranc stability relies on ____ Ligamentous, bony
anatomy, while displacement relies
on _____ anatomy
What is a downside of fixing/fusing No micromotion - they can break
lisfranc injury with screws?
What is a benefit of lisfranc ORIF Plate fixation maintains stability without violating
with plates? the articular surface
What is ligamentous lisfranc Low energy injuries, mostly young adults and highly
augmentation (mini tightrope, active individuals
internal brace) typically indicated
for?
