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[Knee]Total knee arthroplasty alignment correction

by 졍TV 2022. 1. 13.

[Femur]

 1. AP : distal cutting , extesion gap

 2. Rotation : Ant. & Post. cutting , flextion gap

[Tibia]

 1. AP : proximal cutting

 2. lateral : post. slope

 

[Femur]

1. AP : distal cutting , extesion gap

Vertical axis , Transverse axis : unchanged

Knee joint line = Transverse axis

Mechanical axis : valgus 3 to V-axis

Femoral shaft axis(anatomical axis) : valgus 9 to V-axis

Tibial shaft axis(anatomical axis) : 3 to V-axis

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Rotation : Ant. & Post. cutting , flextion gap

3 degree ext. rotation to post. condylar line = Transepicondylar axis(TEA)

2 type of referencing to anterior , posterior cortex of distal femur

 

[Tibia]

1. AP : proximal cutting

2. lateral : post. slope

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