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Table 1 Demographic and radiological data

From: Short knee radiographs can be inadequate for estimating TKA alignment in knees with bowing

 No bowingBowingp value
(n = 107)(n = 107)
Age (years)70.01 ± 5.3770.10 ± 5.810.968a
SexM 3
F 104
M 5
F 102
0.471b
SideR 55
L 52
R 58
L 49
0.681b
FC (°)5.66 ± 3.465.79 ± 3.710.697a
Bowing typenoneFemur only (n = 64)
Tibia only (n = 24)
Femur & Tibia (n = 19)
 
|FBA| (°)1.08 ± 1.024.65 ± 2.33< 0.001a
Femoral bowing directionnoneM 14@L 69 
|TBA| (°)0.77 ± 0.781.91 ± 1.60< 0.001a
Tibial bowing directionnoneM 25@L 18 
aFTA (°)3.91 ± 2.085.11 ± 2.58< 0.001a
mHKA (°)−0.83 ± 1.84−1.04 ± 2.270.379a
aFTA-mHKA difference (°)4.74 ± 1.876.14 ± 2.49< 0.001a
  1. FC Flexion contracture, |FBA| absolute value of femoral bowing angle, |TBA| absolute value of tibial bowing angle, M medial, L lateral, aFTA anatomical femorotibial angle, mHKA mechanical hip–knee–ankle axis angle
  2. aMann–Whitney U test
  3. bFisher’s exact test