Mako Test out Exam UPDATED Exam
Questions and CORRECT Answers
The knee has 3 articulations, which are? - CORRECT ANSWER- Patellofemoral,
tibiofemoral (medial, lateral compartment
What type of joint is the knee? - CORRECT ANSWER- Synovial (also a "modified hinge
joint")
The PF joint is what type of Joint - CORRECT ANSWER- Plane joint
Axes of the knee? - CORRECT ANSWER- Mechanical - center of femoral head to center of
ankle
Anatomic - along the IM canals of the bone
Functional - Flexion/extension and longitudinal axis (rotation)
TEA -
Whiteside's - perpendicular from TEA (surgical)
As knee extends, Tibia externally rotates - CORRECT ANSWER-
What is always excuses during a TKA - CORRECT ANSWER- ACL , menisci
Difference between medial and lateral plateaus? - CORRECT ANSWER- 4mm AP
Surgical TEA vs clinical TEA - CORRECT ANSWER- Surgical -lateral prominence to
medial sulcus
Clinical - prominence to prominence
What is the Q angle? - CORRECT ANSWER- Angle between the axis of the femur (ASIS to
patella) and the line between the patella and tibial tuberosity extended
, Which femoral ridge is extended more anterior? - CORRECT ANSWER- Lateral, despite the
medial condyle being typically larger
TKA design Rationale - CORRECT ANSWER- - stability in Flexion
- less quad force in extension
- reduces patella stress
- important for activities where stability is needed
The Single Radius is designed to restore the knee's single center of rotation during active
flexion. This allows for constant _______ tension and ________ in flexion. - CORRECT
ANSWER- Ligament / stability
Thickness of distal and posterior of femoral component - CORRECT ANSWER- 8mm each
(to help make gaps as equal as possible)
Quads helps with - CORRECT ANSWER- Stabilize the knee during gait
Less force requires because of the single radius (longer PF offset)
Shortened flared post. Consoles facilitate what? - CORRECT ANSWER- Relaxation of soft
tissue to enable deep flexion. (Also allows for int./Ext. Rotation up to 20°
Deepened trochlear groove is designed to help: - CORRECT ANSWER- Relax the extensor
mechanism,
Enable deeper Flexion,
Reduce contact stresses
Anterior flange on triathlon is : - CORRECT ANSWER- 7° anterior flange, helps to downsize
the component and avoid notching
Triathlon is designed to address what type of patients? - CORRECT ANSWER- Smaller
anatomies, but also larger male patients
Questions and CORRECT Answers
The knee has 3 articulations, which are? - CORRECT ANSWER- Patellofemoral,
tibiofemoral (medial, lateral compartment
What type of joint is the knee? - CORRECT ANSWER- Synovial (also a "modified hinge
joint")
The PF joint is what type of Joint - CORRECT ANSWER- Plane joint
Axes of the knee? - CORRECT ANSWER- Mechanical - center of femoral head to center of
ankle
Anatomic - along the IM canals of the bone
Functional - Flexion/extension and longitudinal axis (rotation)
TEA -
Whiteside's - perpendicular from TEA (surgical)
As knee extends, Tibia externally rotates - CORRECT ANSWER-
What is always excuses during a TKA - CORRECT ANSWER- ACL , menisci
Difference between medial and lateral plateaus? - CORRECT ANSWER- 4mm AP
Surgical TEA vs clinical TEA - CORRECT ANSWER- Surgical -lateral prominence to
medial sulcus
Clinical - prominence to prominence
What is the Q angle? - CORRECT ANSWER- Angle between the axis of the femur (ASIS to
patella) and the line between the patella and tibial tuberosity extended
, Which femoral ridge is extended more anterior? - CORRECT ANSWER- Lateral, despite the
medial condyle being typically larger
TKA design Rationale - CORRECT ANSWER- - stability in Flexion
- less quad force in extension
- reduces patella stress
- important for activities where stability is needed
The Single Radius is designed to restore the knee's single center of rotation during active
flexion. This allows for constant _______ tension and ________ in flexion. - CORRECT
ANSWER- Ligament / stability
Thickness of distal and posterior of femoral component - CORRECT ANSWER- 8mm each
(to help make gaps as equal as possible)
Quads helps with - CORRECT ANSWER- Stabilize the knee during gait
Less force requires because of the single radius (longer PF offset)
Shortened flared post. Consoles facilitate what? - CORRECT ANSWER- Relaxation of soft
tissue to enable deep flexion. (Also allows for int./Ext. Rotation up to 20°
Deepened trochlear groove is designed to help: - CORRECT ANSWER- Relax the extensor
mechanism,
Enable deeper Flexion,
Reduce contact stresses
Anterior flange on triathlon is : - CORRECT ANSWER- 7° anterior flange, helps to downsize
the component and avoid notching
Triathlon is designed to address what type of patients? - CORRECT ANSWER- Smaller
anatomies, but also larger male patients
