Level | Lumbar Fusion (n = 23)1 | No Lumbar Fusion (n=25)1 | Adjusted2 Mean Difference Between Groups | ||
---|---|---|---|---|---|
Baseline | 9-Years | Baseline | 9-Years | ||
L2-L3 (non-fused level) | -0.65±1.23 | -1.13±1.39 | -0.29±0.88 | -0.65±1.29 | 0.14 (-0.51 to 0.79) |
L3-L4 (non-fused level) | -0.54±1.33 | -1.32±1.25* | 0.18±1.02 | -0.45±1.17** | 0.36 (-0.27 to 0.98) |
L4-L5 (fused level) | -0.88±1.33 | -1.61±1.70** | -0.81±1.30 | -1.35±1.42** | 0.03 (-0.57 to 0.63) |
L5-S1 (fused level) | -1.19±1.62 | -1.55±1.47 | -1.08±1.02 | -1.38±1.08 | 0.20 (-0.38 to 0.78) |