Table 5 Comparison of the parameters according to the HKA angle in female
Female | HKA 0–10° (n = 236) | HKA 10° < (n = 162) | p value |
|---|---|---|---|
Age (years old) | 70.5 ± 6.8 (52.0 to 89.0) | 70.7 ± 6.6 (55.0 to 86.0) | |
Hip–knee–ankle angle (HKA, °) | 6.4 ± 2.4 (0.1 to 10.0) | 13.4 ± 2.8 (10.1 to 25.4) | < 0.001* |
Neck–shaft angle (NSA, °) | 126.4 ± 5.6 (111.7 to 141.7) | 126.5 ± 5.9 (110.6 to 142.7) | 0.865 |
pSAD (°) | 5.7 ± 1.4 (1.0 to 10.4) | 4.9 ± 1.5 (1.0 to 7.6) | < 0.001* |
mSAD (°) | 6.6 ± 0.9 (4.1 to 8.8) | 6.6 ± 0.8 (4.1 to 8.8) | 0.440 |
dSAD (°) | 5.2 ± 1.4 (2.0 to 10.5) | 6.3 ± 1.5 (3.5 to 11.3) | < 0.001* |
PB (mSAD–pSAD, °) | 0.9 ± 1.5 (− 3.7 to 6.5) | 2.0 ± 1.6 (− 1.7 to 7.7) | < 0.001* |
DB (dSAD–mSAD, °) | − 1.4 ± 1.4 (− 5.0 to 3.9) | − 0.1 ± 1.7 (− 4.0 to 5.3) | < 0.001* |
GB (dSAD–pSAD, °) | − 0.5 ± 2.4 (− 6.7 to 9.5) | 1.5 ± 2.8 (− 3.5 to 9.8) | < 0.001* |
mLDFA (°) | 88.7 ± 2.3 (82.5 to 96.3) | 90.9 ± 2.1 (85.9 to 98.0) | < 0.001* |
Femur length (mm) | 409.9 ± 23.6 (342.0 to 481.5) | 411.6 ± 23.0 (360.0 to 469.8) | 0.528 |
Isthmic distance (mm) | 232.8 ± 20.6 (164.0 to 297.0) | 230.4 ± 25.7 (121.1 to 287.5) | 0.265 |
Isthmic location (%) | 59.8 ± 5.4 (40.2 to 74.0) | 58.0 ± 5.0 (41.9 to 70.2) | 0.200 |
Isthmic diameter (mm) | 11.8 ± 2.0 (7.0 to 10.7) | 11.9 ± 2.1 (7.3 to 16.8) | 0.614 |