DEX IOT DAY 2 QUESTIONS AND VERIFIED ANSWERS
Which of the following is NOT a benefit of using the Ankle TightRope Implant?
A. The TightRope implants allows for more physiologic motion than screws.
B. The TightRope Implant needs to be removed between 90-120 days after surgery.
C. The TightRope implant can be placed through a plate or outside of the plate.
D. The TightRope Implant eliminates broken screw complications and has equivalent
strength to screw fixation. - Answers - The Tightrope Implant needs to be removed
between 90-120 days after surgery.
TIghtrope should be placed 1.5cm-2 cm above the joint line.
True
False - Answers - True
The tightrope Should be placed 30 degrees posterior to anterior.
True
False - Answers - True
It is important to punch through the periosteum when drilling/
True
False - Answers - False: Be careful with drill, do not punch through the periosteum.
Where do you want the anchor facing when deploying button?
A. Towards the ceiling or floor
B. Towards the head or feet - Answers - Towards the head or feet
What size is the drill for the Tightrope?
A. 3.7mm
B. 3.5mm
C. 3.2mm
D. 3.0mm - Answers - 3.7mm
It there is rotational instability, a plate is all that is needed
True
False - Answers - False: It there is rotational instability there needs to be more than just
a plate (cough cough a tightrope too).
Select all of the benefits of the Tightrope:
A. Allows more micromotion
B. Better reduction
C. Better outcomes
D. No hardware removal
, E. Earlier weight bearing
F. 37% of screw failure
G. 12% loss of reduction with a syndesmotic screw - Answers - A. Allows more
micromotion
B. Better reduction
C. Better outcomes
D. No hardware removal
E. Earlier weight bearing
F. 37% of screw failure
G. 12% loss of reduction with a syndesmotic screw
True or False: Locking screw give you a much more rigid construct compared to non-
locking screws
True
False - Answers - True
Tibia Neurovascular Soft Tissue at risk? - Answers - Saphoneous (Medial side)
Sural (lateral) - more at risk with the pars system
What are the different fracture patterns? - Answers - Transverse - high axial (think up
and down hard) load, low rotational
Oblique- spiral, intermediate axial and intermediate rotational
Comminuted- broken in many places, shattered, low axial and rotational
The ankle mortise is comprised of all of the following bones EXCEPT:
A. Tibia
B. Calcaneus
C. Fibula
D. Talus - Answers - Calcaneus
What is the strongest ligament in the ankle syndesmotic ligament complex?
A. AiTFL
B. ATFL
C. CFL
D. PiTFL - Answers - PiTFL
The first step when reducing a BiMaleolar ankle fracture with an unstable syndesmosis
should be:
A. Fixation of medial malleolus
B. Placement of TightRope implant
C. Restore the length of the fibula
D. Placement of syndesmotic screw - Answers - Restore the length of the fibula
What two nerves are most at risk when surgeons perform a lateral ankle ligament
operation?
A. Anterior talofibular nerve and calcaneofibular nerve
Which of the following is NOT a benefit of using the Ankle TightRope Implant?
A. The TightRope implants allows for more physiologic motion than screws.
B. The TightRope Implant needs to be removed between 90-120 days after surgery.
C. The TightRope implant can be placed through a plate or outside of the plate.
D. The TightRope Implant eliminates broken screw complications and has equivalent
strength to screw fixation. - Answers - The Tightrope Implant needs to be removed
between 90-120 days after surgery.
TIghtrope should be placed 1.5cm-2 cm above the joint line.
True
False - Answers - True
The tightrope Should be placed 30 degrees posterior to anterior.
True
False - Answers - True
It is important to punch through the periosteum when drilling/
True
False - Answers - False: Be careful with drill, do not punch through the periosteum.
Where do you want the anchor facing when deploying button?
A. Towards the ceiling or floor
B. Towards the head or feet - Answers - Towards the head or feet
What size is the drill for the Tightrope?
A. 3.7mm
B. 3.5mm
C. 3.2mm
D. 3.0mm - Answers - 3.7mm
It there is rotational instability, a plate is all that is needed
True
False - Answers - False: It there is rotational instability there needs to be more than just
a plate (cough cough a tightrope too).
Select all of the benefits of the Tightrope:
A. Allows more micromotion
B. Better reduction
C. Better outcomes
D. No hardware removal
, E. Earlier weight bearing
F. 37% of screw failure
G. 12% loss of reduction with a syndesmotic screw - Answers - A. Allows more
micromotion
B. Better reduction
C. Better outcomes
D. No hardware removal
E. Earlier weight bearing
F. 37% of screw failure
G. 12% loss of reduction with a syndesmotic screw
True or False: Locking screw give you a much more rigid construct compared to non-
locking screws
True
False - Answers - True
Tibia Neurovascular Soft Tissue at risk? - Answers - Saphoneous (Medial side)
Sural (lateral) - more at risk with the pars system
What are the different fracture patterns? - Answers - Transverse - high axial (think up
and down hard) load, low rotational
Oblique- spiral, intermediate axial and intermediate rotational
Comminuted- broken in many places, shattered, low axial and rotational
The ankle mortise is comprised of all of the following bones EXCEPT:
A. Tibia
B. Calcaneus
C. Fibula
D. Talus - Answers - Calcaneus
What is the strongest ligament in the ankle syndesmotic ligament complex?
A. AiTFL
B. ATFL
C. CFL
D. PiTFL - Answers - PiTFL
The first step when reducing a BiMaleolar ankle fracture with an unstable syndesmosis
should be:
A. Fixation of medial malleolus
B. Placement of TightRope implant
C. Restore the length of the fibula
D. Placement of syndesmotic screw - Answers - Restore the length of the fibula
What two nerves are most at risk when surgeons perform a lateral ankle ligament
operation?
A. Anterior talofibular nerve and calcaneofibular nerve
