MAKO PKA EXAM QUESTIONS AND
ANSWERS 2026
What are pka posterior slope parameters? - ANSWERS3-7 degrees
How should initial posterior slope be positioned? - ANSWERSset crosshair in sagital
view to mid-point of the tibia and drop the crosshair slope 1-2 degrees below the native
anatomic slope
what is the difference between pka and tka? - ANSWERSPKA is not a joint replacement
procedure it is a joint resurfacing procedure
How is adjusting implant proudness? - ANSWERSMoves the implant perpendicular to
the posterior slope
Pre-planning guidelines for proudness? - ANSWERS2.5-3.5 mm
Resection depth for tibia? - ANSWERSPoly size- proudness= resection depth for of the
tibia
femoral preoperative IR/ER - ANSWERS5 internal- 5 external
femoral varus/valgus - ANSWERS3 varus- 3 valgus
what is the FFC? - ANSWERSFlexion Facet Center-- tip of the crosshair is placed on
FFC right above the posterior nub of the implant because the J curve is different
PF preoperative planning - ANSWERS-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
how many mm of bone must be left on the patella? - ANSWERS12 mm
How to size tibial implant? - ANSWERSGo to transverse view and move tibia implant to
correct location and toggle different sizes to determine best fit
How to determine correct tibia size? - ANSWERSNo overhang A/P or M/L and does not
intrube the tibial intercondylar eminence (location of the ACL insertion)
ANSWERS 2026
What are pka posterior slope parameters? - ANSWERS3-7 degrees
How should initial posterior slope be positioned? - ANSWERSset crosshair in sagital
view to mid-point of the tibia and drop the crosshair slope 1-2 degrees below the native
anatomic slope
what is the difference between pka and tka? - ANSWERSPKA is not a joint replacement
procedure it is a joint resurfacing procedure
How is adjusting implant proudness? - ANSWERSMoves the implant perpendicular to
the posterior slope
Pre-planning guidelines for proudness? - ANSWERS2.5-3.5 mm
Resection depth for tibia? - ANSWERSPoly size- proudness= resection depth for of the
tibia
femoral preoperative IR/ER - ANSWERS5 internal- 5 external
femoral varus/valgus - ANSWERS3 varus- 3 valgus
what is the FFC? - ANSWERSFlexion Facet Center-- tip of the crosshair is placed on
FFC right above the posterior nub of the implant because the J curve is different
PF preoperative planning - ANSWERS-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
how many mm of bone must be left on the patella? - ANSWERS12 mm
How to size tibial implant? - ANSWERSGo to transverse view and move tibia implant to
correct location and toggle different sizes to determine best fit
How to determine correct tibia size? - ANSWERSNo overhang A/P or M/L and does not
intrube the tibial intercondylar eminence (location of the ACL insertion)
