Table 1 Demographic and radiological data

Age (years)

70.01 ± 5.37

70.10 ± 5.81

0.968^a

Sex

M 3

F 104

M 5

F 102

0.471^b

Side

R 55

L 52

R 58

L 49

0.681^b

FC (°)

5.66 ± 3.46

5.79 ± 3.71

0.697^a

Bowing type

none

Femur only (n = 64)

Tibia only (n = 24)

Femur & Tibia (n = 19)

|FBA| (°)

1.08 ± 1.02

4.65 ± 2.33

< 0.001^a

Femoral bowing direction

none

M 14@L 69

|TBA| (°)

0.77 ± 0.78

1.91 ± 1.60

< 0.001^a

Tibial bowing direction

none

M 25@L 18

aFTA (°)

3.91 ± 2.08

5.11 ± 2.58

< 0.001^a

mHKA (°)

−0.83 ± 1.84

−1.04 ± 2.27

0.379^a

aFTA-mHKA difference (°)

4.74 ± 1.87

6.14 ± 2.49

< 0.001^a