Table 3.
Dimensions of parameters with regard to the intervertebral space (Mean ± SD).
| Parameter | Sex | T12/L1 | L1/L2 | L2/L3 | L3/L4 | L4/L5 | L5/S1 |
| aIEH∗∗ | M | 7.40 ± 1.10 | 8.64 ± 1.32 | 10.22 ± 1.43 | 11.54 ± 1.35 | 12.05 ± 1.62 | 11.33 ± 2.00 |
| (mm) | F | 7.34 ± 0.96 | 8.39 ± 1.09 | 9.83 ± 1.16 | 11.17 ± 1.30 | 11.42 ± 1.27 | 11.02 ± 1.82 |
| mIEH∗∗ | M | 8.11 ± 1.08 | 9.07 ± 1.33 | 11.39 ± 1.47 | 12.15 ± 1.81 | 13.99 ± 1.85 | 12.92 ± 2.47 |
| (mm) | F | 7.05 ± 1.01∗ | 7.46 ± 1.27∗ | 9.75 ± 1.23∗ | 10.93 ± 1.53∗ | 11.42 ± 1.92∗ | 11.77 ± 2.46∗ |
| pIEH∗∗ | M | 3.94 ± 1.41 | 5.13 ± 1.35 | 6.48 ± 1.41 | 7.41 ± 1.57 | 7.84 ± 1.85 | 7.82 ± 5.22 |
| (mm) | F | 4.43 ± 1.44∗ | 5.43 ± 1.50 | 6.53 ± 1.60 | 7.58 ± 1.95 | 7.63 ± 1.84 | 6.71 ± 1.65 |
| lIEH | M | 4.54 ± 1.12 | 5.13 ± 1.37 | 6.09 ± 1.21 | 6.68 ± 1.11 | 6.78 ± 1.29 | 4.78 ± 1.13 |
| (mm) | F | 4.34 ± 1.23 | 5.09 ± 1.45 | 6.10 ± 1.26 | 6.45 ± 1.23 | 6.67 ± 1.35 | 4.74 ± 1.16 |
| rIEH | M | 4.58 ± 1.26 | 5.18 ± 1.26 | 6.12 ± 1.29 | 6.60 ± 1.32 | 6.80 ± 1.30 | 4.80 ± 1.32 |
| (mm) | F | 4.31 ± 1.12 | 5.11 ± 1.30 | 6.03 ± 1.42 | 6.54 ± 1.24 | 6.62 ± 1.23 | 4.66 ± 1.31 |
| IEA∗∗ | M | 6.50 ± 1.94 | 6.77 ± 1.86 | 7.57 ± 2.35 | 8.15 ± 2.55 | 10.03 ± 3.27 | 14.29 ± 4.30 |
| (degrees) | F | 4.45 ± 1.98∗ | 5.18 ± 2.06∗ | 6.23 ± 1.95∗ | 7.46 ± 2.66 | 9.67 ± 3.26 | 13.56 ± 4.27 |
∗
Significant difference compared with males (P < .05).
∗∗
Significant difference in one-way ANOVA (P < .05).
a/m/pIEH = anterior, medium, or posterior intervertebral endplate height, IEA = intervertebral endplate angle, l/rIEH = left or right intervertebral endplate height.