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Table 1 Radiographic parameters and corresponding definitions

From: The assessment of femoral shaft morphology in the sagittal plane in Chinese patients with osteoarthritis—a radiographic analysis

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