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Table 3 Distribution of the ratio of IDH/VH in each vertebral segment (through L1–L2 to L5–S1) for the four Roussouly subtypes

From: Correlation between lumbar intervertebral disc height and lumbar spine sagittal alignment among asymptomatic Asian young adults

IDH/VH(%) L1/2 L2/3 L3/4 L4/5 L5/S1
Type I 39.98 ± 5.35 42.84 ± 4.1 45.09 ± 4.11 47.14 ± 3.65 43.00 ± 5.23
Type II 37.84 ± 5.79 40.46 ± 5.13 43.01 ± 4.70 45.59 ± 4.71 41.15 ± 5.14
Type III 39.08 ± 5.54 42.31 ± 5.26 45.20 ± 5.25 47.64 ± 5.03 43.16 ± 4.94
Type IV 43.17 ± 3.84 45.57 ± 3.15 47.02 ± 3.67 49.9 ± 3.16 44.13 ± 5.92