PFC Knee Flashcards

1
Q

High Box Cut Why ?

A

Gives more stability and has a long spine

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2
Q

Constraint

A

Inherent resistance to montion in a give direction . Opposite of Laxity

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3
Q

Conformity

A

The degree to which two surfaces “Match” one another

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4
Q

Insert Matches with

A

Tibia in PFC

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5
Q

The J Curve

A

The sagittal deometry is designed to approximate the curevs of the femoral condayles . 5 Bone Cuts -5 Radii
Mimic the natural kinetamics of the knee . this is the advantage of multiple radii But this causes the instabiltiy during the movements from flexion to extension. Take the stryker rebuttal from Unni

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6
Q

Better Coronal Geometry

A

PS and CR Femoral component has a round on round femoral design to prevent edge loading

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7
Q

Edge loading happens at

A

135 degree of flexion in PFC and more than 150 in Attune

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8
Q

Patello Femoral Articulation

A

Deep patellar track lowers sheat stresses on the implant bone interface.
one spherical frmoral trochjelar

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9
Q

All Poly

A

no micro motion has a high surviorship dat a

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