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Percent of Native L5-S1 ROM Magnitude in FE Loading Direction With Different Fusion Lengths (L2-S1, T10-S1, and T4-S1), Compared Among Various Fusion Modalities.
| L2-S1 | T10-S1 | T4-S1 | ||
|---|---|---|---|---|
| Percent of native ROM at L5/S1 | IS | 5.2 ± 3.6 | 5.1 ± 3.6 | 8.7 ± 4.7 |
| ALIF | 19.4 ± 23.1 | 19 ± 20.8 | 25.4 ± 22.1 | |
| IS with ALIF | 1.2 ± 1.4 | 1.6 ± 1.7 | 3.8 ± 3.6 |
Abbreviations: IS, iliac screw fixation; ALIF, anterior lumbar interbody fixation; ROM range of motion; FE, flexion-extension.
