Arthrex DEX Final Test Review Exam
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What is the size of the cone of variability with the variable angle drill guide available for use
with the distal radius volar plates? - CORRECT ANSWER 20 degrees
How does variable angle locking work in the head of the Distal Radius plate? - CORRECT
ANSWER Locking tower screws into plate for easy, accurate drilling. PEEK aiming
guide used as well to get appropriate angle
T or F: The Distal radius plate is to be placed just distal to the watershed line to minimize
tenon irritation. - CORRECT ANSWER False
T or F: The Wrist plating system was designed for fixation of intra-articular and extra-
articular fractures, osteotomies, as well as nonunions and malunions of the distal radius. -
CORRECT ANSWER True
What are the appropriate size screws available for the Distal Radius Fracture plate set? -
CORRECT ANSWER 2.4 mm VAL/Cortical and 3.5 mm Cortical/Locking
What bone articulates with the distal radius at the radial styloid? - CORRECT
ANSWER Scaphoid
What structure is commonly injured as an acute eor late complication of a volar distal radius
plate that is placed just distal to the watershed line? - CORRECT ANSWER Rupture of
the Flexor Pollicis Longus Tendon
Which of the following are options provided for the size of the Distal Radius Plate? -
CORRECT ANSWER Narrow, Standard, Wide
, What is the most common type of distal radius fracture? - CORRECT
ANSWER Colles Fracture (FOOSH)
What is the normal anatomic volar tilt of the distal radius? - CORRECT ANSWER 11
Degrees
What is the typical/desired graft diameter when reconstructing an MPFL? - CORRECT
ANSWER 4 mm
T or F: Be sure that the final graft sits intra-articular for proper anatomic reconstruction on an
MPFL. - CORRECT ANSWER False
When tensioning the final graft, the knee should be placed at what degree of flexion? -
CORRECT ANSWER 30 degrees
Which statement regarding the MPFL is true? - CORRECT ANSWER It prevents
medial subluxation of the patella
The MPFL is the main passive stabilizer of the patella against this directional force? -
CORRECT ANSWER Lateral
The minimum length of an MPFL graft as stated in the technique guide is: - CORRECT
ANSWER 18 cm
Where is the femoral attachment of the MPFL in relation to the medial epicondyle? -
CORRECT ANSWER 4 mm posterior and 8 mm proximal
T or F: When performing an MPFL reconstruction, the ACL Tightrope and an interference
screw are both acceptable options for femur graft fixation. - CORRECT
ANSWER False
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What is the size of the cone of variability with the variable angle drill guide available for use
with the distal radius volar plates? - CORRECT ANSWER 20 degrees
How does variable angle locking work in the head of the Distal Radius plate? - CORRECT
ANSWER Locking tower screws into plate for easy, accurate drilling. PEEK aiming
guide used as well to get appropriate angle
T or F: The Distal radius plate is to be placed just distal to the watershed line to minimize
tenon irritation. - CORRECT ANSWER False
T or F: The Wrist plating system was designed for fixation of intra-articular and extra-
articular fractures, osteotomies, as well as nonunions and malunions of the distal radius. -
CORRECT ANSWER True
What are the appropriate size screws available for the Distal Radius Fracture plate set? -
CORRECT ANSWER 2.4 mm VAL/Cortical and 3.5 mm Cortical/Locking
What bone articulates with the distal radius at the radial styloid? - CORRECT
ANSWER Scaphoid
What structure is commonly injured as an acute eor late complication of a volar distal radius
plate that is placed just distal to the watershed line? - CORRECT ANSWER Rupture of
the Flexor Pollicis Longus Tendon
Which of the following are options provided for the size of the Distal Radius Plate? -
CORRECT ANSWER Narrow, Standard, Wide
, What is the most common type of distal radius fracture? - CORRECT
ANSWER Colles Fracture (FOOSH)
What is the normal anatomic volar tilt of the distal radius? - CORRECT ANSWER 11
Degrees
What is the typical/desired graft diameter when reconstructing an MPFL? - CORRECT
ANSWER 4 mm
T or F: Be sure that the final graft sits intra-articular for proper anatomic reconstruction on an
MPFL. - CORRECT ANSWER False
When tensioning the final graft, the knee should be placed at what degree of flexion? -
CORRECT ANSWER 30 degrees
Which statement regarding the MPFL is true? - CORRECT ANSWER It prevents
medial subluxation of the patella
The MPFL is the main passive stabilizer of the patella against this directional force? -
CORRECT ANSWER Lateral
The minimum length of an MPFL graft as stated in the technique guide is: - CORRECT
ANSWER 18 cm
Where is the femoral attachment of the MPFL in relation to the medial epicondyle? -
CORRECT ANSWER 4 mm posterior and 8 mm proximal
T or F: When performing an MPFL reconstruction, the ACL Tightrope and an interference
screw are both acceptable options for femur graft fixation. - CORRECT
ANSWER False
