Table 1. Changes in SLL in one- and two-level TLIF with standard lordotic and hyperlordotic cages.
| TLIF procedure, cage design, and number of levels fused | Preop. SLL (°) | Postop. SLL (°) | 1-year SLL (°) | ΔSLL (°) (pre. vs. post.) |
P, ΔSLL (pre. vs. post.) |
P, ΔSLL (hyperlordotic vs. standard lordotic) |
|---|---|---|---|---|---|---|
| One-level TLIF (n=23) | ||||||
| Standard lordotic cages (n=11) | 22.62 | 30.38 | 27.19 | 7.76 | 0.024 | 0.917 |
| Hyperlordotic cages (n=12) | 21.21 | 29.42 | 29.90 | 8.21 | 0.020 | |
| Two-level TLIF (n=30) | ||||||
| Standard lordotic cages (n=14) | 29.34 | 43.24 | 42.33 | 13.90 | 0.032 | 0.389 |
| Hyperlordotic cages (n=16) | 37.29 | 46.11 | 40.92 | 8.83 | 0.023 |
TLIF, transforaminal lumbar interbody fusion; SLL, segmental lumbar lordosis.