Mako
Comprehensive Resource To Help You Ace Exams Includes
Frequently Tested Questions With ELABORATED 100%
Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. What are pka posterior slope parameters? - CORRECT ANSWER 3-
7 degrees
2. How should initial posterior slope be positioned? - CORRECT
ANSWER set crosshair in sagital view to mid-point of the tibia and
drop the crosshair slope 1-2 degrees below the native anatomic slope
3. what is the difference between pka and tka? - CORRECT ANSWER
PKA is not a joint replacement procedure it is a joint resurfacing
procedure
4. How is adjusting implant proudness? - CORRECT ANSWER Moves
the implant perpendicular to the posterior slope
5. Pre-planning guidelines for proudness? - CORRECT ANSWER 2.5-
3.5 mm
6. Resection depth for tibia? - CORRECT ANSWER Poly size-
proudness= resection depth for of the tibia
7. How to size tibial implant? - CORRECT ANSWER Go to transverse
view and move tibia implant to correct location and toggle different
sizes to determine best fit
8. How to determine correct tibia size? - CORRECT ANSWER No
overhang A/P or M/L and does not intrube the tibial intercondylar
eminence (location of the ACL insertion)
9. Recommended pre-operative planning for tibia IR/ER - CORRECT
ANSWER IR/ER is 5 internal-5 external
,10. in coronal view what are preoperative parameters for
varus/valgus? - CORRECT ANSWER 0-1.5 varus
*want the implant to match the native curvature in the anterior and
posterior portions
11. medial femur implant sizing - CORRECT ANSWER 1) drag the
implant to match the native condyle in the center of the medial
femoral condyle
2) in the sagital view drag the femoral component to match the
curvature of the native condyle
12. femoral preoperative IR/ER - CORRECT ANSWER 5 internal- 5
external
13. femoral varus/valgus - CORRECT ANSWER 3 varus- 3 valgus
14. what is the FFC? - CORRECT ANSWER Flexion Facet Center--
tip of the crosshair is placed on FFC right above the posterior nub of
the implant because the J curve is different
15. PF preoperative planning - CORRECT ANSWER -ensure that
the implant is less than 2mm inset from the medial and lateral ridges
-superior lateral tip=> ensure the magenta bone line bisects the tip of
the implant
-set implant about 2mm proud of the deepest part of the trochlear
groove
-anchor on pink line of the superior lateral tip and adjust the flexion of
the component to be about 2mm proud
-flexion/extension parameter for PF= 5 flex/5 extension
16. how many mm of bone must be left on the patella? - CORRECT
ANSWER 12 mm
17. Blumenstaat line - CORRECT ANSWER confirm the implant is
anterior to blumenstaat line so there is. no impingement on. the
cruciate ligaments
18. what is parameters for internal/external rotation for PF implant?
- CORRECT ANSWER 0 external-- 4 internal ==> never externally
, rotate PF implant as it could lover the patella jump height and lead to
dislocation
19. what is the PF transition zone? - CORRECT ANSWER The
transition point between the PF implant and native femoral
cartilage=> in the coronal view check the PF implant is about 2mm
proud and prioritize the non-diseased side is 2 mm
20. PF varus/valgus - CORRECT ANSWER 2 valgus/ 3 varus
21. how many mm should the femoral component and PF
component be positioned apart? - CORRECT ANSWER 3 mm
22. PF M/L - CORRECT ANSWER select the largest size that does
not cross over the medial and lateral ridge peaks and is less than
2mm inset from the ridge peaks
23. PF superior lateral tip - CORRECT ANSWER ensure the
magenta bone line bisects the tip of the implant
24. PF trochlear groove - CORRECT ANSWER set implant about
2mm proud of bone through the deepest part of the trochlear groove
25. PF patella - CORRECT ANSWER a minimum of 12mm must be
left on the patella
26. PF blumenstaat line - CORRECT ANSWER ensure the distal
tip of the implant is anterior to blumenstaat line
27. lateral uni tibia posterior slope - CORRECT ANSWER 0-7
degrees posterior slope
-set it 1-2 degrees less than the native anatomical posterior slope
28. tibia lateral uni - CORRECT ANSWER -does not overhang A/P,
no overhang M/L, does not intrude on the intercondyler eminence
-component proudness set to about 3mm
29. lateral tibia internal/external rotation - CORRECT ANSWER 5
external to 10 internal
Comprehensive Resource To Help You Ace Exams Includes
Frequently Tested Questions With ELABORATED 100%
Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. What are pka posterior slope parameters? - CORRECT ANSWER 3-
7 degrees
2. How should initial posterior slope be positioned? - CORRECT
ANSWER set crosshair in sagital view to mid-point of the tibia and
drop the crosshair slope 1-2 degrees below the native anatomic slope
3. what is the difference between pka and tka? - CORRECT ANSWER
PKA is not a joint replacement procedure it is a joint resurfacing
procedure
4. How is adjusting implant proudness? - CORRECT ANSWER Moves
the implant perpendicular to the posterior slope
5. Pre-planning guidelines for proudness? - CORRECT ANSWER 2.5-
3.5 mm
6. Resection depth for tibia? - CORRECT ANSWER Poly size-
proudness= resection depth for of the tibia
7. How to size tibial implant? - CORRECT ANSWER Go to transverse
view and move tibia implant to correct location and toggle different
sizes to determine best fit
8. How to determine correct tibia size? - CORRECT ANSWER No
overhang A/P or M/L and does not intrube the tibial intercondylar
eminence (location of the ACL insertion)
9. Recommended pre-operative planning for tibia IR/ER - CORRECT
ANSWER IR/ER is 5 internal-5 external
,10. in coronal view what are preoperative parameters for
varus/valgus? - CORRECT ANSWER 0-1.5 varus
*want the implant to match the native curvature in the anterior and
posterior portions
11. medial femur implant sizing - CORRECT ANSWER 1) drag the
implant to match the native condyle in the center of the medial
femoral condyle
2) in the sagital view drag the femoral component to match the
curvature of the native condyle
12. femoral preoperative IR/ER - CORRECT ANSWER 5 internal- 5
external
13. femoral varus/valgus - CORRECT ANSWER 3 varus- 3 valgus
14. what is the FFC? - CORRECT ANSWER Flexion Facet Center--
tip of the crosshair is placed on FFC right above the posterior nub of
the implant because the J curve is different
15. PF preoperative planning - CORRECT ANSWER -ensure that
the implant is less than 2mm inset from the medial and lateral ridges
-superior lateral tip=> ensure the magenta bone line bisects the tip of
the implant
-set implant about 2mm proud of the deepest part of the trochlear
groove
-anchor on pink line of the superior lateral tip and adjust the flexion of
the component to be about 2mm proud
-flexion/extension parameter for PF= 5 flex/5 extension
16. how many mm of bone must be left on the patella? - CORRECT
ANSWER 12 mm
17. Blumenstaat line - CORRECT ANSWER confirm the implant is
anterior to blumenstaat line so there is. no impingement on. the
cruciate ligaments
18. what is parameters for internal/external rotation for PF implant?
- CORRECT ANSWER 0 external-- 4 internal ==> never externally
, rotate PF implant as it could lover the patella jump height and lead to
dislocation
19. what is the PF transition zone? - CORRECT ANSWER The
transition point between the PF implant and native femoral
cartilage=> in the coronal view check the PF implant is about 2mm
proud and prioritize the non-diseased side is 2 mm
20. PF varus/valgus - CORRECT ANSWER 2 valgus/ 3 varus
21. how many mm should the femoral component and PF
component be positioned apart? - CORRECT ANSWER 3 mm
22. PF M/L - CORRECT ANSWER select the largest size that does
not cross over the medial and lateral ridge peaks and is less than
2mm inset from the ridge peaks
23. PF superior lateral tip - CORRECT ANSWER ensure the
magenta bone line bisects the tip of the implant
24. PF trochlear groove - CORRECT ANSWER set implant about
2mm proud of bone through the deepest part of the trochlear groove
25. PF patella - CORRECT ANSWER a minimum of 12mm must be
left on the patella
26. PF blumenstaat line - CORRECT ANSWER ensure the distal
tip of the implant is anterior to blumenstaat line
27. lateral uni tibia posterior slope - CORRECT ANSWER 0-7
degrees posterior slope
-set it 1-2 degrees less than the native anatomical posterior slope
28. tibia lateral uni - CORRECT ANSWER -does not overhang A/P,
no overhang M/L, does not intrude on the intercondyler eminence
-component proudness set to about 3mm
29. lateral tibia internal/external rotation - CORRECT ANSWER 5
external to 10 internal
