Radiographic parameters | Definition |
---|---|
sFBA | The angle between the midlines drawn in the proximal and distal quarter segments in the sagittal plane |
DACSMA | The angle between femoral distal anterior cortex axis and sagittal mechanical axis |
DACSDAA | The angle between distal anterior cortex axis and sagittal distal anatomic axis |
SMADAA | The angle between sagittal distal anatomic axis and sagittal mechanical axis |
cFBA | The angle between the midlines drawn in the proximal and distal quarter segments of the femoral shaft in the coronal plane |
Valgus angle | The angle between femoral coronal mechanical axis and coronal distal anatomic axis |
HKA | The angle between femoral coronal mechanical axis and tibial coronal mechanical axis |
LF | The distance between two horizontal lines covering the entire femur |
Femoral offset | The vertical distance from the center of femoral head to the midline drawn in the proximal quarter of femoral shaft |
FNS | The angle between the two midlines drawn in the proximal quarter of femoral shaft and the femoral neck |
mLDFA | The lateral angle between femoral coronal mechanical axis and the knee line, the distal femur articular surface |