| Before surgery | 24 months after surgery | ||||
---|---|---|---|---|---|---|
Whole | OLIF51 | TLIF51 | Whole | OLIF51 | TLIF51 | |
SVA (mm) | 125.7 ± 21.1 | 125.9 ± 21.3 | 125.5 ± 22.1 | 29.5 ± 14.8‡ | 27.1 ± 11.4 | 32.7 ± 18.4 |
PT (°) | 33.0 ± 7.2 | 31.4 ± 7.2 | 35.1 ± 7.0 | 18.1 ± 5.7‡ | 17.6 ± 4.6 | 18.6 ± 7.6 |
PI (°) | 53.7 ± 6.4 | 53.2 ± 6.0 | 54.4 ± 7.1 | 53.6 ± 6.5 | 53.0 ± 6.0 | 54.4 ± 7.2 |
LL (°) | 18.2 ± 9.0 | 16.7 ± 10.4 | 20.3 ± 6.8 | 51.7 ± 5.8‡‡ (39.4–62.4) | 55.5 ± 2.8*** (50.0–62.4) | 46.9 ± 5.2 (39.4–52.6) |
LLL (°) | 9.5 ± 4.0 | 9.0 ± 4.6 | 10.2 ± 3.3 | 27.2 ± 4.8‡‡ | 31.1 ± 1.4*** | 22.3 ± 2.4 |
LLL/LL (%) | 49.4 ± 17.4 | 47.5 ± 18.2 | 51.9 ± 17.0 | 52.5 ± 5.5 | 56.2 ± 2.1*** | 47.8 ± 4.9 |
PI-LL (°) | 35.5 ± 9.4 | 36.5 ± 8.5 | 34.1 ± 10.6 | 5.3 ± 3.6‡‡ (1.0–10.6) | 3.6 ± 3.0** (1.0–10.6) | 7.5 ± 3.2 (3.5–10.0) |
dSVA (mm) | – | – | – | 96.2 ± 23.4 (55.3–141.5) | 98.9 ± 22.9 | 92.8 ± 24.8 |
dLL (°) | – | – | – | 33.4 ± 11.5 (10.0–67.5) | 38.7 ± 10.2** (32.3–67.5) | 26.6 ± 9.8 (10.0–39.9) |
Mean DA (°) | ||||||
 L2-L5 | 4.1 ± 3.5 | 3.4 ± 4.1 | 5.0 ± 2.4 | 12.4 ± 1.5‡‡ (8.1–16.7) | 12.5 ± 1.6 | 12.3 ± 1.4 |
 L5-S1 | 8.7 ± 3.5 | 9.8 ± 3.6 | 7.5 ± 2.3 | 12.9 ± 6.7‡ (3.5–27.9) | 18.4 ± 3.7*** (14.5–27.9) | 6.9 ± 2.8 (3.5–10.7) |