DEX IOT DAY 4 TEST - MIDFOOT & FOREFOOT QUESTIONS AND
ANSWERS UPDATED 2024/2025 A COMPLETE EXAM SOLUTION
ALL ANSWERS CORRECT DETAILED BEST RATED A+ FOR
SUCCESS
What constitutes an indirect injury? - CORRECT ANSWERS Plantarflexed foot with axial load
(heavy object falling on foot- tarsals shift anterior or posterior)
What is necessary to diagnose lisfranc injury? - CORRECT ANSWERS Weightbearing x-ray
What is a fleck sign? - CORRECT ANSWERS Avulsion fracture between 2nd met and medial
cuneiform
What type of lisfranc injuries do not require surgery? - CORRECT ANSWERS Nondisplaced and
stable
Lisfranc stability relies on ____ anatomy, while displacement relies on _____ anatomy -
CORRECT ANSWERS Ligamentous, bony
What is a downside of fixing/fusing lisfranc injury with screws? - CORRECT ANSWERS No
micromotion - they can break
What is a benefit of lisfranc ORIF with plates? - CORRECT ANSWERS Plate fixation maintains
stability without violating the articular surface
What is ligamentous lisfranc augmentation (mini tightrope, internal brace) typically indicated
for? - CORRECT ANSWERS Low energy injuries, mostly young adults and highly active
individuals
What is the gold standard for lisfranc injury fixation? - CORRECT ANSWERS Plates and screws
, DEX IOT DAY 4 TEST - MIDFOOT & FOREFOOT QUESTIONS AND
ANSWERS UPDATED 2024/2025 A COMPLETE EXAM SOLUTION
ALL ANSWERS CORRECT DETAILED BEST RATED A+ FOR
SUCCESS
What % of all fractures are lisfranc injuries? - CORRECT ANSWERS 0.2%
Who treats most lisfranc injuries? - CORRECT ANSWERS Sports surgeons
What is the role of hardware in ORIF? - CORRECT ANSWERS Maintains reduction, hardware
eventually removed
Role of hardware in fusion? - CORRECT ANSWERS Compresses fusion, hardware left in place
What are lisfranc (diamond) plates indicated for? - CORRECT ANSWERS Fixation or fusion; high
or low energy injuries; orientations left and right; sizes S,M,L; oblong compression hole across
lisfranc joint placed on 2nd met, other holes take 3.5
Lisfranc Internal Brace: - CORRECT ANSWERS Purely ligamentous injuries, ideal for athletes;
cons: difficult to tension properly, can be difficult for soft bone; benefits: low-profile fixation,
strong biomechanical data (multi-plane fixation)
Knotless Mini Tightrope: - CORRECT ANSWERS Purely ligamentous injuries, ideal for athletes;
alternative for those that struggle with IB; cons: medial button prominence; benefits: knotless
and tensionable, no change in surgical technique (6 strand #2 coreless machine suture)
Supplemental internal brace fixation in intercuneiform joint creates a ______ stronger
construct across Lisfranc complex - CORRECT ANSWERS 2x
For ligamentous injuries, fixation into medial cuneiform is comparable to - CORRECT ANSWERS
Using a cannulated screw
ANSWERS UPDATED 2024/2025 A COMPLETE EXAM SOLUTION
ALL ANSWERS CORRECT DETAILED BEST RATED A+ FOR
SUCCESS
What constitutes an indirect injury? - CORRECT ANSWERS Plantarflexed foot with axial load
(heavy object falling on foot- tarsals shift anterior or posterior)
What is necessary to diagnose lisfranc injury? - CORRECT ANSWERS Weightbearing x-ray
What is a fleck sign? - CORRECT ANSWERS Avulsion fracture between 2nd met and medial
cuneiform
What type of lisfranc injuries do not require surgery? - CORRECT ANSWERS Nondisplaced and
stable
Lisfranc stability relies on ____ anatomy, while displacement relies on _____ anatomy -
CORRECT ANSWERS Ligamentous, bony
What is a downside of fixing/fusing lisfranc injury with screws? - CORRECT ANSWERS No
micromotion - they can break
What is a benefit of lisfranc ORIF with plates? - CORRECT ANSWERS Plate fixation maintains
stability without violating the articular surface
What is ligamentous lisfranc augmentation (mini tightrope, internal brace) typically indicated
for? - CORRECT ANSWERS Low energy injuries, mostly young adults and highly active
individuals
What is the gold standard for lisfranc injury fixation? - CORRECT ANSWERS Plates and screws
, DEX IOT DAY 4 TEST - MIDFOOT & FOREFOOT QUESTIONS AND
ANSWERS UPDATED 2024/2025 A COMPLETE EXAM SOLUTION
ALL ANSWERS CORRECT DETAILED BEST RATED A+ FOR
SUCCESS
What % of all fractures are lisfranc injuries? - CORRECT ANSWERS 0.2%
Who treats most lisfranc injuries? - CORRECT ANSWERS Sports surgeons
What is the role of hardware in ORIF? - CORRECT ANSWERS Maintains reduction, hardware
eventually removed
Role of hardware in fusion? - CORRECT ANSWERS Compresses fusion, hardware left in place
What are lisfranc (diamond) plates indicated for? - CORRECT ANSWERS Fixation or fusion; high
or low energy injuries; orientations left and right; sizes S,M,L; oblong compression hole across
lisfranc joint placed on 2nd met, other holes take 3.5
Lisfranc Internal Brace: - CORRECT ANSWERS Purely ligamentous injuries, ideal for athletes;
cons: difficult to tension properly, can be difficult for soft bone; benefits: low-profile fixation,
strong biomechanical data (multi-plane fixation)
Knotless Mini Tightrope: - CORRECT ANSWERS Purely ligamentous injuries, ideal for athletes;
alternative for those that struggle with IB; cons: medial button prominence; benefits: knotless
and tensionable, no change in surgical technique (6 strand #2 coreless machine suture)
Supplemental internal brace fixation in intercuneiform joint creates a ______ stronger
construct across Lisfranc complex - CORRECT ANSWERS 2x
For ligamentous injuries, fixation into medial cuneiform is comparable to - CORRECT ANSWERS
Using a cannulated screw
