From: Contemplate iliosacral screw in patients with developmental dysplasia of the hip
Dysplastic group (n:55) | Type A (n:39) | Type B(n:21) | Type C(n:14) | P* | |
---|---|---|---|---|---|
S1 Minimum cross-sectional area (mm2) | 391.8 ± 95.5 | 361.7 ± 71 | 382 ± 47.73 | 365.1 ± 42.66 | 0.311 |
S1 Maximum iliosacral screw length (mm) | 86.10 ± 7.21 | 83.12 ± 8.79 | 78.92 ± 8.11 | 84.40 ± 4.23 | 0.652 |
S1 Axial angulation (degree) | 17.6 ± 6.81 | 23.46 ± 8.58 | 21.36 ± 7.63 | 19.7 ± 6.86 | 0.656 |
S1 Coronal angulation (degree) | 16.11 ± 5.55 | 19.74 ± 4.12 | 17.52 ± 5.87 | 15.62 ± 6.63 | 0.332 |
S2 Minimum cross-sectional area (mm2) | 197 ± 57.74 | 191.48 ± 59.2 | 193.07 ± 67.2 | 160 ± 35.5 | 0.498 |
S2 Maximum iliosacral screw length (mm) | 76.7 ± 8.68 | 78.89 ± 9.13 | 75.4 ± 8.01 | 79.9 ± 8.48 | 0.620 |
S2 Axial angulation (degree) | 7.68 ± 5.32 | 8.37 ± 4.43 | 9.42 ± 3.44 | 6.05 ± 6.08 | 0.441 |
S2 Coronal angulation (degree) | 7.46 ± 2.74 | 7.88 ± 2.78 | 7.75 ± 4.19 | 8.15 ± 6.88 | 0.378 |