The MPFL is the main passive stabilizer against lateral patella displacement and is at its
tightest in what degree of flexion?
A. 0-30 degrees
B. 0-180 degrees
C. 60-90 degrees - ANSWER-A. 0-30 degrees
What landmark does Schottles Point refer to when discussing MPFL?
A. distal patella attachment
B. superior patella attachment
C. femoral attachment
D. tibial attachment - ANSWER-C. femoral attachment
Which statement regarding MPFL is TRUE:
A. it inserts on the upper 1/2 (superior) of the patella
B. it inserts on the lateral femur
C. it inserts on the lower 1/2 (inferior) of the patella
D. it prevents medial subluxation of the patella
E. all of the above - ANSWER-A. it inserts on the upper 1/2 (superior) of the patella
True or False: the use of the MPFL template included in the 3.9 mm BioComposite SwiveLock implant MPFL kit is advantageous in establishing the proper position of the femoral insertion of the MPFL, which is critical for maintaining proper joint biomechanics
of the patellofemoral joint throughout range of motion. - ANSWER-True
When using the MPFL template included in the 3.9 mm BioComposite SwiveLock implant MPFL kit the insertion point of the guide pin is approximately: A. 1 mm anterior to the posterior cortex extension line; 2.5 mm distal to the posterior articular border of the medial femoral condyle; proximal to the level of the posterior point
of Blumensaat's line
B. 2.5 mm anterior to the posterior cortex extension line; 1 mm distal to the posterior articular border of the medial femoral condyle; proximal to the level of the posterior point
of Blumensaat's line
C. 1 mm anterior to the posterior cortex extension line; 2.5 mm distal to the posterior articular border of the medial femoral condyle; distal to the level of the posterior point of Blumensaat's line - ANSWER-A. 1 mm anterior to the posterior cortex extension line; 2.5 mm distal to the posterior articular border of the medial femoral condyle; proximal to the level of the posterior point of Blumensaat's line
The 3.9 BioComposite SwiveLock MPFL kits come in which of the two options:
A. MPFL Implant System with BioComposite FastThread Interference Screw for femoral
fixation and MPFL Implant System with TightRope implant for femoral fixation
B. MPFL Implant System with InternalBrace implant for femoral fixation and MPFL Implant System with BioComposite FastThread Interference Screw for femoral fixation
C. MPFL Implant System with PEEK Interference Screw for femoral fixation and MPFL Implant System with TightRope Implant for femoral fixation
D. MPFL Implant System with InternalBrace implant for femoral fixation and MPFL Implant System with PEEK Interference Screw for femoral fixation - ANSWER-A. MPFL Implant System with BioComposite FastThread Interference Screw for femoral fixation and MPFL Implant System with TightRope implant for femoral fixation
What is the appropriate diameter and length of the gracilis autograft tendon needed for MPFL reconstruction when using the 3.9mm BioComposite SwiveLock Implant MPFL Kit?
A. Approximately 2 mm in diameter and minimum 18 cm in length
B. Approximately 12 mm in diameter and minimum 25 cm in length
C. Approximately 8 mm in diameter and minimum 16 cm in length
D. Approximately 4 mm in diameter and minimum 18 cm in length
E. All of the above are acceptable - ANSWER-D. Approximately 4 mm in diameter and minimum 18 cm in length