Table 1 Comparison of the parameters according to the sex difference
Male (n = 232) | Female (n = 424) | p value | |
|---|---|---|---|
Age (years old) | 69.4 ± 8.2 (50 to 89) | 70.5 ± 6.8 (52 to 89) | |
Hip–knee–ankle angle (HKA, °) | 6.7 ± 6.8 (− 19.6 to 27.6) | 8.4 ± 5.5 (− 13.4 to 25.4) | 0.002* |
Neck–shaft angle (NSA, °) | 125.0 ± 5.5 (109.9 to 137.2) | 126.4 ± 5.6 (110.6 to 142.7) | 0.002* |
pSAD (°) | 5.9 ± 1.7 (1.1 to 12.2) | 5.4 ± 1.5 (1.0 to 10.4) | 0.004* |
mSAD (°) | 6.1 ± 1.1 (3.5 to 8.8) | 6.6 ± 0.9 (4.1 to 8.8) | < 0.001* |
dSAD (°) | 5.3 ± 1.6 (2.1 to 10.3) | 5.6 ± 1.6 (1.8 to 11.3) | 0.027* |
PB (mSAD–pSAD, °) | 0.3 ± 1.8 (− 6.3 to 5.2) | 1.2 ± 1.6 (− 3.7 to 7.7) | < 0.001* |
DB (dSAD–mSAD, °) | − 0.8 ± 1.8 (− 6.0 to 5.8) | − 1.0 ± 1.6 (− 5.7 to 5.3) | 0.229 |
GB (dSAD–pSAD, °) | − 0.5 ± 2.9 (− 7.7 to 9.1) | 0.2 ± 2.7 (− 6.7 to 9.8) | 0.002* |
mLDFA (°) | 88.4 ± 2.6 (80.7 to 96.7) | 89.3 ± 2.6 (81 to 98) | < 0.001* |
Femur length (mm) | 432.3 ± 23.9 (365.1 to 517.1) | 410.6 ± 23.3 (342 to 481.5) | < 0.001* |
Isthmic distance (mm) | 245.0 ± 23.8 (136.7 to 321.7) | 232.1 ± 23.1 (121.1 to 297.0) | < 0.001* |
Isthmic location (%) | 56.6 ± 4.0 (34.1 to 68.7) | 56.5 ± 5.7 (40.2 to 74.0) | 0.844 |
Isthmic diameter (mm) | 12.2 ± 1.9 (8.6 to 19.1) | 11.8 ± 2.1 (7.0 to 16.9) | 0.076 |