DEX IOT DAY 4 EXAM STUDY GUIDE
2026 COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS
<RECENT VERSION>
1. Which of the following can be used to treat Lisfranc Injury? - ANSWER ✔
4.5 Bio-Corkscrew Mini TIghtrope
3.5 Titanium Mini Tightrope
1.7 Knotless Mini Tightrope
2. Where do you place the Diamond plate's compression hole for Lisfranc? -
ANSWER ✔ 2nd met base
3. The Lisfranc ligament originates on the ________ and inserts on the
________? - ANSWER ✔ Medial cuneiform and 2nd met base
4. Lisfranc injuries are commonly due to which of the following mechanisms?
- ANSWER ✔ - MVA
Falls from heights
Athletic Injuries
5. What is another name for the tarsal-metatarsal joint? - ANSWER ✔ Lisfranc
Joint
,6. What size is the capital fragment kwire for MIS bunion? - ANSWER ✔ 1.6
7. Where should you insert your capital fragment wire for MIS bunion? -
ANSWER ✔ Through the #1 knob and through the capital fragment shifter
into the proximal phalanx
8. What does the #2 knob on the MIS bunion guide control? - ANSWER ✔
Proximal to distal control of guide for eventual screw placement
9. What 3 screws are in the MIS bunion tray? What are their features? -
ANSWER ✔ 2.5 Comp FT
.86 wire
2.0 drill for soft bone
2.2 drill for hard bone
1.5 Hex driver.
3.5 Beveled FT
1.4 wire
2.9 drill
T10
4.0 Beveled FT screw
1.6 wire
3.6 drill
-T15
10.Where is the lisfranc joint? - ANSWER ✔ Spans the entire midfoot
articulation with the metatarsals
11.What is the keystone conformation? - ANSWER ✔ Connection between 2nd
met and middle cuneiform that provides stability to lisfranc joint
,12.What does the lisfranc ligament connect? - ANSWER ✔ Medial cuneiform
to base of 2nd met
13.Three aspects of lisfranc ligament: - ANSWER ✔ Dorsal, interosseous,
plantar
14.What makes up the lisfranc complex? - ANSWER ✔ 1st and 2nd met &
medial and middle cuneiform
15.What type of injury typically causes instability and gapping between bones
of lisfranc complex? - ANSWER ✔ Axial load
16.Which column of the foot has the most flexibility? - ANSWER ✔ Lateral
column
17.What mechanisms of injury occur with lisfranc pathology? - ANSWER ✔
Direct or indirect, high energy or low energy
18.What constitutes a direct injury? - ANSWER ✔ axial load with dorsal and
plantar forces
19.What constitutes an indirect injury? - ANSWER ✔ Plantarflexed foot with
axial load (heavy object falling on foot- tarsals shift anterior or posterior)
20.What is necessary to diagnose lisfranc injury? - ANSWER ✔ Weightbearing
x-ray
, 21.What is a fleck sign? - ANSWER ✔ Avulsion fracture between 2nd met and
medial cuneiform
22.What type of lisfranc injuries do not require surgery? - ANSWER ✔
Nondisplaced and stable
23.Lisfranc stability relies on ____ anatomy, while displacement relies on
_____ anatomy - ANSWER ✔ Ligamentous, bony
24.What is a downside of fixing/fusing lisfranc injury with screws? - ANSWER
✔ No micromotion - they can break
25.What is a benefit of lisfranc ORIF with plates? - ANSWER ✔ Plate fixation
maintains stability without violating the articular surface
26.What is ligamentous lisfranc augmentation (mini tightrope, internal brace)
typically indicated for? - ANSWER ✔ Low energy injuries, mostly young
adults and highly active individuals
27.What is the gold standard for lisfranc injury fixation? - ANSWER ✔ Plates
and screws
28.What % of all fractures are lisfranc injuries? - ANSWER ✔ 0.2%
29.Who treats most lisfranc injuries? - ANSWER ✔ Sports surgeons
2026 COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS
<RECENT VERSION>
1. Which of the following can be used to treat Lisfranc Injury? - ANSWER ✔
4.5 Bio-Corkscrew Mini TIghtrope
3.5 Titanium Mini Tightrope
1.7 Knotless Mini Tightrope
2. Where do you place the Diamond plate's compression hole for Lisfranc? -
ANSWER ✔ 2nd met base
3. The Lisfranc ligament originates on the ________ and inserts on the
________? - ANSWER ✔ Medial cuneiform and 2nd met base
4. Lisfranc injuries are commonly due to which of the following mechanisms?
- ANSWER ✔ - MVA
Falls from heights
Athletic Injuries
5. What is another name for the tarsal-metatarsal joint? - ANSWER ✔ Lisfranc
Joint
,6. What size is the capital fragment kwire for MIS bunion? - ANSWER ✔ 1.6
7. Where should you insert your capital fragment wire for MIS bunion? -
ANSWER ✔ Through the #1 knob and through the capital fragment shifter
into the proximal phalanx
8. What does the #2 knob on the MIS bunion guide control? - ANSWER ✔
Proximal to distal control of guide for eventual screw placement
9. What 3 screws are in the MIS bunion tray? What are their features? -
ANSWER ✔ 2.5 Comp FT
.86 wire
2.0 drill for soft bone
2.2 drill for hard bone
1.5 Hex driver.
3.5 Beveled FT
1.4 wire
2.9 drill
T10
4.0 Beveled FT screw
1.6 wire
3.6 drill
-T15
10.Where is the lisfranc joint? - ANSWER ✔ Spans the entire midfoot
articulation with the metatarsals
11.What is the keystone conformation? - ANSWER ✔ Connection between 2nd
met and middle cuneiform that provides stability to lisfranc joint
,12.What does the lisfranc ligament connect? - ANSWER ✔ Medial cuneiform
to base of 2nd met
13.Three aspects of lisfranc ligament: - ANSWER ✔ Dorsal, interosseous,
plantar
14.What makes up the lisfranc complex? - ANSWER ✔ 1st and 2nd met &
medial and middle cuneiform
15.What type of injury typically causes instability and gapping between bones
of lisfranc complex? - ANSWER ✔ Axial load
16.Which column of the foot has the most flexibility? - ANSWER ✔ Lateral
column
17.What mechanisms of injury occur with lisfranc pathology? - ANSWER ✔
Direct or indirect, high energy or low energy
18.What constitutes a direct injury? - ANSWER ✔ axial load with dorsal and
plantar forces
19.What constitutes an indirect injury? - ANSWER ✔ Plantarflexed foot with
axial load (heavy object falling on foot- tarsals shift anterior or posterior)
20.What is necessary to diagnose lisfranc injury? - ANSWER ✔ Weightbearing
x-ray
, 21.What is a fleck sign? - ANSWER ✔ Avulsion fracture between 2nd met and
medial cuneiform
22.What type of lisfranc injuries do not require surgery? - ANSWER ✔
Nondisplaced and stable
23.Lisfranc stability relies on ____ anatomy, while displacement relies on
_____ anatomy - ANSWER ✔ Ligamentous, bony
24.What is a downside of fixing/fusing lisfranc injury with screws? - ANSWER
✔ No micromotion - they can break
25.What is a benefit of lisfranc ORIF with plates? - ANSWER ✔ Plate fixation
maintains stability without violating the articular surface
26.What is ligamentous lisfranc augmentation (mini tightrope, internal brace)
typically indicated for? - ANSWER ✔ Low energy injuries, mostly young
adults and highly active individuals
27.What is the gold standard for lisfranc injury fixation? - ANSWER ✔ Plates
and screws
28.What % of all fractures are lisfranc injuries? - ANSWER ✔ 0.2%
29.Who treats most lisfranc injuries? - ANSWER ✔ Sports surgeons
