Table 1.
Range-of-Motion Measurements.
| Range of Motion (deg) Mean ± SD | |||
|---|---|---|---|
| Construct | Flexion/Extension | Lateral Bending | Axial Rotation |
| Intact | 4.1 ± 3.1 | 5.0 ± 1.4 | 1.4 ± 0.6 |
| LCage | 1.5 ± 1.1 | 2.0 ± 1.6 | 1.1 ± 0.4 |
| 2S-MPF | 1.3 ± 1.0 | 0.7 ± 0.5 | 0.8 ± 0.3 |
| 4S-MPF | 1.0 ± 0.8 | 0.6 ± 0.4 | 0.7 ± 0.4 |
| 4S-MPF + ISPF | 0.3 ± 0.3 | 0.5 ± 0.4 | 0.6 ± 0.2 |
| LLIF + BPSF | 0.3 ± 0.3 | 0.6 ± 0.5 | 0.7 ± 0.2 |
Abbreviations: LLIF, lateral lumbar interbody fusion; LCage, traditional LLIF cage; 2S-MPF, LLIF with 2-screw modular plate fixation; 4S-MPF, LLIF with 4-screw modular plate fixation; 4S-MPF + ISPF, LLIF with 4-screw modular plate fixation and interspinous process fixation; LLIF + BPSF, LLIF cage with bilateral pedicle screw fixation.