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Arthrex Final DEX Preparation
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?
a) 1mm
b) 2mm
c) 4mm
d) None, it is not necessary to account for compression or countersinking the screw
head
ANSWER: 4mm
Why is a solid 1.5mm Hex Driver included with the compression FT Screw
instrumentation?
a) To aid in screw removal
b) To increase torque when inserting the solof compression FT screws
c) To help countersink screws
d) To make the set look cool
ANSWER: To aid in screw removal
Which of the following is NOT a feature or a benefit of the 3.5mm mini
compression FT screw?
a) Variable stepped thread pitch
b) Improved torque transmission through a hexaglobe recess
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c) Conical shaped outer diameter to gain final compression
d) Headless
e) Cannulated
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)?
a) 20-50mm by 2mm increments, 55-90mm by 5 mm increments
b) 35-120mm by 2mm increments
c) 35-120mm by 5mm increments
d) 35-140mm by 5mm increments
ANSWER: 35-120mm by 5mm increments
Which of the following is NOT a feature or benefit of the 2.5mm micro
compression FT screw?
a)Variable stepped thread pitch
b)Improved torque transmission through a hexalobe recess
c)Self-tapping flutes
d)Headless
c) Cannulated
ANSWER: Improved torque transmission through a hexalobe recess
What are the lengths of the 2.5 micro compression FT screws?
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a)8-14mm by 2mm increments, then 16-34mm by 1mm increments
b)8-14mm by 2mm increments, then 16-30mm by 1mm increments
c)8-14mm by 1mm increments, then 16-50mm by 2mm increments
d)8-14mm by 1mm increments, then 16-34mm by 2mm increments
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?
a) Variable threaded pitch
b) Cannulated
c) Comes with a profile drill
d) Are tapered on the outer diameter
e) Headless design
ANSWER: Are tapered on the outer diameter
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?
a) 3.2 mm
b) 3.0 mm
c) 3.5 mm
d) 3.7 mm
ANSWER: 3.5 mm
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What size graft should be used for a thumb UCL reconstruction when using
the 3.5 DX SwiveLock® SL anchor?
a) 4 mm
b) 2 mm
c) 5 mm
d) 3.5 mm
ANSWER: 2 mm
The anchor position in the base of the proximal phalanx for a thumb UCL
repair/reconstruction should be placed?
a)Slightly more volar than midline
b)Slightly more dorsal than midline
c)Central
d)On the articular surface
ANSWER: Slightly more volar than midline
Which of the following statements regarding the thumb is CORRECT?
a) In MCP flexion the proper UCL resists valgus force
b) In MCP flexion the proper UCL resists varus force
c) In MCP extension the accessory UCL resists varus force
d) In MCP flexion the accessory UCL resists valgus force
ANSWER: In MCP flexion the proper UCL resists valgus force
Arthrex Final DEX Preparation
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?
a) 1mm
b) 2mm
c) 4mm
d) None, it is not necessary to account for compression or countersinking the screw
head
ANSWER: 4mm
Why is a solid 1.5mm Hex Driver included with the compression FT Screw
instrumentation?
a) To aid in screw removal
b) To increase torque when inserting the solof compression FT screws
c) To help countersink screws
d) To make the set look cool
ANSWER: To aid in screw removal
Which of the following is NOT a feature or a benefit of the 3.5mm mini
compression FT screw?
a) Variable stepped thread pitch
b) Improved torque transmission through a hexaglobe recess
,2|Page
c) Conical shaped outer diameter to gain final compression
d) Headless
e) Cannulated
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)?
a) 20-50mm by 2mm increments, 55-90mm by 5 mm increments
b) 35-120mm by 2mm increments
c) 35-120mm by 5mm increments
d) 35-140mm by 5mm increments
ANSWER: 35-120mm by 5mm increments
Which of the following is NOT a feature or benefit of the 2.5mm micro
compression FT screw?
a)Variable stepped thread pitch
b)Improved torque transmission through a hexalobe recess
c)Self-tapping flutes
d)Headless
c) Cannulated
ANSWER: Improved torque transmission through a hexalobe recess
What are the lengths of the 2.5 micro compression FT screws?
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a)8-14mm by 2mm increments, then 16-34mm by 1mm increments
b)8-14mm by 2mm increments, then 16-30mm by 1mm increments
c)8-14mm by 1mm increments, then 16-50mm by 2mm increments
d)8-14mm by 1mm increments, then 16-34mm by 2mm increments
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?
a) Variable threaded pitch
b) Cannulated
c) Comes with a profile drill
d) Are tapered on the outer diameter
e) Headless design
ANSWER: Are tapered on the outer diameter
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?
a) 3.2 mm
b) 3.0 mm
c) 3.5 mm
d) 3.7 mm
ANSWER: 3.5 mm
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What size graft should be used for a thumb UCL reconstruction when using
the 3.5 DX SwiveLock® SL anchor?
a) 4 mm
b) 2 mm
c) 5 mm
d) 3.5 mm
ANSWER: 2 mm
The anchor position in the base of the proximal phalanx for a thumb UCL
repair/reconstruction should be placed?
a)Slightly more volar than midline
b)Slightly more dorsal than midline
c)Central
d)On the articular surface
ANSWER: Slightly more volar than midline
Which of the following statements regarding the thumb is CORRECT?
a) In MCP flexion the proper UCL resists valgus force
b) In MCP flexion the proper UCL resists varus force
c) In MCP extension the accessory UCL resists varus force
d) In MCP flexion the accessory UCL resists valgus force
ANSWER: In MCP flexion the proper UCL resists valgus force
