DEX IOT DAY 5 TEST 2025 | TRAUMA AND HAND &
WRIST | QUESTIONS AND WELL VERIFIED ANSWERS |
LATEST UPDATE | (ALREADY GRADED A+)
Why is a solid 1.5mm Hex Driver included with the compression FT Screw
instrumentation?
To aid in screw removal
To increase torque when inserting the solof compression FT screws
To help countersink screws
To make the set look cool -CORRECT ANSWER To aid in screw removal
When the surgeon is performing a DIP joint fusion and has inserted the double ended
kwire to the desired depth in the middle phalanx, how many millimeters should be
subtracted from the measured length of the kwire to account for countersinking the
screw head and compression at the fusion site?
1mm
2mm
4mm
None, it is not necessary to account for compression or countersinking the screw head -
CORRECT ANSWER 4mm
Which of the following is NOT a feature or a benefit of the 3.5mm mini compression FT
screw?
Variable stepped thread pitch
Improved torque transmission through a hexaglobe recess
Conical shaped outer diameter to gain final compression
Headless
Cannulated -CORRECT ANSWER Conical shaped outer diameter to gain final
compression
What are the screw lengths available in the 7.0,, X-large compression FT screw system-
(AR-8750S)?
20-50mm by 2mm increments, 55-90mm by 5 mm increments
35-120mm by 2mm increments
35-120mm by 5mm increments
35-140mm by 5mm increments -CORRECT ANSWER 35-120mm by 5mm increments
True or False: one of the ways the compression FT screws achieve compression is by
having a large pitch on the leading end and smaller pitch on the trailing end -CORRECT
ANSWER true
,Which of the following is NOT a feature or benefit of the 2.5mm micro compression FT
screw?
Variable stepped thread pitch
Improved torque transmission through a hexalobe recess
Self-tapping flutes
Headless
Cannulated -CORRECT ANSWER Improved torque transmission through a hexalobe
recess
There are two main types of headless compression screws available on the market.
One is a "herbert" style screw that has threads at the leading end, a smooth shaft, and
threads at the trailing end or head of the screw. The other type is similar to the Arthrex
compression FT screws that is fully threaded with variable thread pitch to gain
compression. True or False. The main advantage to using a fully threaded screw with
variable pitch is to gain purchase along the entire length of the screw rather than
depending on the head of a partially threaded screw to gain and maintain purchase in
just the near cortex -CORRECT ANSWER True
What are the lengths of the 2.5 micro compression FT screws?
8-14mm by 2mm increments, then 16-34mm by 1mm increments
8-14mm by 2mm increments, then 16-30mm by 1mm increments
8-14mm by 1mm increments, then 16-50mm by 2mm increments
8-14mm by 1mm increments, then 16-34mm by 2mm increments -CORRECT ANSWER
8-14mm by 1mm increments, then 16-50mm by 2mm increments
Besides the actual size of the larger compression FT screws, what is the key design
difference between the 5.0 and 7.0 compression FT screws compared to the smaller
compression FT screws?
Variable threaded pitch
Cannulated
Comes with a profile drill
Are tapered on the outer diameter
Headless design -CORRECT ANSWER Are tapered on the outer diameter
True or False: a 3.5 mini compression FT screws schieves a statically significant higher
maximum push-out when compared to an acumed acutrak 2 mini screw and a synthes
3.0mm Hebert screw. This may lead to a better long term stability and less likely screw
backout/ -CORRECT ANSWER false
When using a 3.5 mm DX SwiveLock® SL anchor in the metacarpal head for
reconstruction of the thumb UCL using SutureTape and a palmaris longus autograft
what size drill should be used?
3.2 mm
3.0 mm
3.5 mm
3.7 mm -CORRECT ANSWER 3.5 mm
,Before placing the second SwiveLock® anchor for a thumb UCL IB repair, the thumb
should be placed in:
Neutral
60 degrees of extension
30 degrees of flexion
60 degrees of flexion -CORRECT ANSWER 30 degrees of flexion
What size graft should be used for a thumb UCL reconstruction when using the 3.5 DX
SwiveLock® SL anchor?
4 mm
2 mm
5 mm
3.5 mm -CORRECT ANSWER 2 mm
True or False: When small bone is encountered on the proximal phalanx when
performing a thumb UCL repair, a Mini PushLock® anchor may be substituted for a 3.5
SwiveLock® anchor. -CORRECT ANSWER True
The anchor position in the base of the proximal phalanx for a thumb UCL
repair/reconstruction should be placed?
Slightly more volar than midline
Slightly more dorsal than midline
Central
On the articular surface -CORRECT ANSWER Slightly more volar than midline
Which of the following statements regarding the thumb is CORRECT?
In MCP flexion the proper UCL resists valgus force
In MCP flexion the proper UCL resists varus force
In MCP extension the accessory UCL resists varus force
In MCP flexion the accessory UCL resists valgus force -CORRECT ANSWER In MCP
flexion the proper UCL resists valgus force
What is the length of the anchor body and fork-tipped eyelet in the 3.5 mm DX
SwiveLock® SL anchor?
4 mm
4.5 mm
4 inches
8.5 mm -CORRECT ANSWER 8.5 mm
True or False: Use of fluoroscopy should be recommended when placing the 3.2mm
spade-tip pin in the calcaneus for an FHL tendon transfer. -CORRECT ANSWER true
What tension-slide kit sizes should you have available for a surgeon performing an FDL
transfer?
4.5 mm & 5.5 mm
, 3.75 mm & 4.5 mm
4.75 mm & 5.5 mm
3.5 mm & 5.5 -CORRECT ANSWER 4.75mm & 5.5 mm
What are the two sizes of the BioComposite Tenodesis Screw on Driver with #2
FiberWire® in the FHL Implant System?
6.0 mm and 7.0 mm
5.5 mm and 6.75 mm
6.25 mm and 7.0 mm
Same sizes as the FDL Implant System -CORRECT ANSWER 6.25 mm and 7.0 mm
What position should the foot be in when tensioning the FDL tendon?
Maximum dorsiflexion and eversion
Plantar flexion and eversion
Dorsiflexion and inversion
Neutral
Maximum plantar flexion and inversion -CORRECT ANSWER Maximum plantar flexion
and inversion
What position should the foot be in when preparing and tensioning the graft during a
Tibialis Anterior reconstruction using the tension slide technique?
Plantarflexion
Dorsiflexion and eversion
Dorsiflexion
Plantarflexion and inversion -CORRECT ANSWER Dorsiflexion
Which two tendons cross at the Master Knot of Henry?
FDL Tendon and FHL Tendon
FDL Tendon and Achilles Tendon
Peroneal Longus Tendon and FHL Tendon
FDL Tendon and Peroneal Longus Tendon -CORRECT ANSWER FDL Tendon and
FHL Tendon
What sizes does the Tenodesis Graft Sizer accept?
3.5 mm - 10.0 mm
2.0 mm - 8.0 mm
3.0 mm - 9.0 mm
3.5 mm - 12.0 mm -CORRECT ANSWER 3.5 mm - 10.0 mm
From anterior to posterior, the order of the anatomic structures posterior to the medial
malleolus is:
Neurovascular bundle (Tibial Artery & Tibial Nerve), Flexor Digitorum Longus, Flexor
Hallucis Longus, Tibialis Posterior
Tibialis Posterior, Flexor Hallucis Longus, Neurovascular bundle (Tibial Artery & Tibial
Nerve), Flexor Digitorum Longus
WRIST | QUESTIONS AND WELL VERIFIED ANSWERS |
LATEST UPDATE | (ALREADY GRADED A+)
Why is a solid 1.5mm Hex Driver included with the compression FT Screw
instrumentation?
To aid in screw removal
To increase torque when inserting the solof compression FT screws
To help countersink screws
To make the set look cool -CORRECT ANSWER To aid in screw removal
When the surgeon is performing a DIP joint fusion and has inserted the double ended
kwire to the desired depth in the middle phalanx, how many millimeters should be
subtracted from the measured length of the kwire to account for countersinking the
screw head and compression at the fusion site?
1mm
2mm
4mm
None, it is not necessary to account for compression or countersinking the screw head -
CORRECT ANSWER 4mm
Which of the following is NOT a feature or a benefit of the 3.5mm mini compression FT
screw?
Variable stepped thread pitch
Improved torque transmission through a hexaglobe recess
Conical shaped outer diameter to gain final compression
Headless
Cannulated -CORRECT ANSWER Conical shaped outer diameter to gain final
compression
What are the screw lengths available in the 7.0,, X-large compression FT screw system-
(AR-8750S)?
20-50mm by 2mm increments, 55-90mm by 5 mm increments
35-120mm by 2mm increments
35-120mm by 5mm increments
35-140mm by 5mm increments -CORRECT ANSWER 35-120mm by 5mm increments
True or False: one of the ways the compression FT screws achieve compression is by
having a large pitch on the leading end and smaller pitch on the trailing end -CORRECT
ANSWER true
,Which of the following is NOT a feature or benefit of the 2.5mm micro compression FT
screw?
Variable stepped thread pitch
Improved torque transmission through a hexalobe recess
Self-tapping flutes
Headless
Cannulated -CORRECT ANSWER Improved torque transmission through a hexalobe
recess
There are two main types of headless compression screws available on the market.
One is a "herbert" style screw that has threads at the leading end, a smooth shaft, and
threads at the trailing end or head of the screw. The other type is similar to the Arthrex
compression FT screws that is fully threaded with variable thread pitch to gain
compression. True or False. The main advantage to using a fully threaded screw with
variable pitch is to gain purchase along the entire length of the screw rather than
depending on the head of a partially threaded screw to gain and maintain purchase in
just the near cortex -CORRECT ANSWER True
What are the lengths of the 2.5 micro compression FT screws?
8-14mm by 2mm increments, then 16-34mm by 1mm increments
8-14mm by 2mm increments, then 16-30mm by 1mm increments
8-14mm by 1mm increments, then 16-50mm by 2mm increments
8-14mm by 1mm increments, then 16-34mm by 2mm increments -CORRECT ANSWER
8-14mm by 1mm increments, then 16-50mm by 2mm increments
Besides the actual size of the larger compression FT screws, what is the key design
difference between the 5.0 and 7.0 compression FT screws compared to the smaller
compression FT screws?
Variable threaded pitch
Cannulated
Comes with a profile drill
Are tapered on the outer diameter
Headless design -CORRECT ANSWER Are tapered on the outer diameter
True or False: a 3.5 mini compression FT screws schieves a statically significant higher
maximum push-out when compared to an acumed acutrak 2 mini screw and a synthes
3.0mm Hebert screw. This may lead to a better long term stability and less likely screw
backout/ -CORRECT ANSWER false
When using a 3.5 mm DX SwiveLock® SL anchor in the metacarpal head for
reconstruction of the thumb UCL using SutureTape and a palmaris longus autograft
what size drill should be used?
3.2 mm
3.0 mm
3.5 mm
3.7 mm -CORRECT ANSWER 3.5 mm
,Before placing the second SwiveLock® anchor for a thumb UCL IB repair, the thumb
should be placed in:
Neutral
60 degrees of extension
30 degrees of flexion
60 degrees of flexion -CORRECT ANSWER 30 degrees of flexion
What size graft should be used for a thumb UCL reconstruction when using the 3.5 DX
SwiveLock® SL anchor?
4 mm
2 mm
5 mm
3.5 mm -CORRECT ANSWER 2 mm
True or False: When small bone is encountered on the proximal phalanx when
performing a thumb UCL repair, a Mini PushLock® anchor may be substituted for a 3.5
SwiveLock® anchor. -CORRECT ANSWER True
The anchor position in the base of the proximal phalanx for a thumb UCL
repair/reconstruction should be placed?
Slightly more volar than midline
Slightly more dorsal than midline
Central
On the articular surface -CORRECT ANSWER Slightly more volar than midline
Which of the following statements regarding the thumb is CORRECT?
In MCP flexion the proper UCL resists valgus force
In MCP flexion the proper UCL resists varus force
In MCP extension the accessory UCL resists varus force
In MCP flexion the accessory UCL resists valgus force -CORRECT ANSWER In MCP
flexion the proper UCL resists valgus force
What is the length of the anchor body and fork-tipped eyelet in the 3.5 mm DX
SwiveLock® SL anchor?
4 mm
4.5 mm
4 inches
8.5 mm -CORRECT ANSWER 8.5 mm
True or False: Use of fluoroscopy should be recommended when placing the 3.2mm
spade-tip pin in the calcaneus for an FHL tendon transfer. -CORRECT ANSWER true
What tension-slide kit sizes should you have available for a surgeon performing an FDL
transfer?
4.5 mm & 5.5 mm
, 3.75 mm & 4.5 mm
4.75 mm & 5.5 mm
3.5 mm & 5.5 -CORRECT ANSWER 4.75mm & 5.5 mm
What are the two sizes of the BioComposite Tenodesis Screw on Driver with #2
FiberWire® in the FHL Implant System?
6.0 mm and 7.0 mm
5.5 mm and 6.75 mm
6.25 mm and 7.0 mm
Same sizes as the FDL Implant System -CORRECT ANSWER 6.25 mm and 7.0 mm
What position should the foot be in when tensioning the FDL tendon?
Maximum dorsiflexion and eversion
Plantar flexion and eversion
Dorsiflexion and inversion
Neutral
Maximum plantar flexion and inversion -CORRECT ANSWER Maximum plantar flexion
and inversion
What position should the foot be in when preparing and tensioning the graft during a
Tibialis Anterior reconstruction using the tension slide technique?
Plantarflexion
Dorsiflexion and eversion
Dorsiflexion
Plantarflexion and inversion -CORRECT ANSWER Dorsiflexion
Which two tendons cross at the Master Knot of Henry?
FDL Tendon and FHL Tendon
FDL Tendon and Achilles Tendon
Peroneal Longus Tendon and FHL Tendon
FDL Tendon and Peroneal Longus Tendon -CORRECT ANSWER FDL Tendon and
FHL Tendon
What sizes does the Tenodesis Graft Sizer accept?
3.5 mm - 10.0 mm
2.0 mm - 8.0 mm
3.0 mm - 9.0 mm
3.5 mm - 12.0 mm -CORRECT ANSWER 3.5 mm - 10.0 mm
From anterior to posterior, the order of the anatomic structures posterior to the medial
malleolus is:
Neurovascular bundle (Tibial Artery & Tibial Nerve), Flexor Digitorum Longus, Flexor
Hallucis Longus, Tibialis Posterior
Tibialis Posterior, Flexor Hallucis Longus, Neurovascular bundle (Tibial Artery & Tibial
Nerve), Flexor Digitorum Longus
