Table 5.
Comparison of LL between the cages: estimated mean change in LL° from preop.
|
Parameter |
6° Cage |
10° Cage |
12° Cage |
p1 |
p2 |
p3 |
| Δ1 | .006b | .159 | .148 | |||
| Mean (95% CI) | 0.2 (−3.3–3.8) | 9.6 (4.0–15.1) | 4.3 (−0.2–8.8) | |||
| Pa | .900 | .001b | .059 | |||
| Δ2 | .068 | .886 | .112 | |||
| Mean (95% CI) | 2.3 (−1.4–6.0) | 8.5 (2.9–14.0) | 2.7 (−1.8–7.2) | |||
| Pa | .218 | .003b | .234 | |||
| Δ3 | .456 | .803 | .379 | |||
| Mean (95% CI) | 3.1 (−0.8–7.2) | 6.0 (−0.6–12.6) | 2.3 (−2.7–7.2) | |||
| Pa | .116 | .075 | .361 |
Abbreviations: CI, confidence interval; Δ1, mean change at immediate postop; Δ2, mean change at 6-month postop; Δ3, mean change at last follow-up; LL, lumbar lordosis; postop, postoperative; preop, preoperative.
a
P = P value (versus preop LL); p1, P value (6° versus 10°); p2, P value (6° versus 12°); p3, P value (10° versus 12°).
b
Statistical significance at P < .05.