Table 4 Clinical outcomes of UBED and PEID
UBED (n = 31) | PEID (n = 65) | P | |
|---|---|---|---|
VAS back | |||
Preoperative | 5.2 ± 1.1 | 5.4 ± 1.1 | 0.343 |
1 day after operation | 2.5 ± 0.6 | 2.5 ± 0.6 | 0.670 |
1 month after operation | 2.1 ± 0.8 | 2.0 ± 0.6 | 0.602 |
6 months after operation | 1.6 ± 0.7 | 1.7 ± 0.6 | 0.431 |
Last follow-up | 1.5 ± 0.5 | 1.5 ± 0.5 | 0.931 |
VAS leg | |||
Preoperative | 6.8 ± 0.9 | 6.6 ± 0.9 | 0.263 |
1 day after operation | 2.6 ± 0.6 | 2.4 ± 0.8 | 0.141 |
1 month after operation | 2.0 ± 0.7 | 2.1 ± 0.8 | 0.783 |
6 months after operation | 1.8 ± 0.7 | 1.9 ± 0.9 | 0.582 |
Last follow-up | 1.5 ± 0.5 | 1.8 ± 0.8 | 0.102 |
ODI | |||
Preoperative | 50.5 ± 7.0 | 51.3 ± 10.4 | 0.698 |
1 day after operation | 21.1 ± 4.6 | 19.8 ± 4.2 | 0.176 |
1 month after operation | 7.6 ± 2.2 | 8.6 ± 2.6 | 0.085 |
6 months after operation | 5.9 ± 2.3 | 6.2 ± 2.5 | 0.637 |
Last follow-up | 5.7 ± 1.9 | 5.8 ± 2.3 | 0.876 |
Area of lamina loss (mm2) | |||
L4/5 | 82.3 ± 26.6 | 79.7 ± 26.2 | 0.740 |
L5/S1 | 59.1 ± 19.5 | 51.1 ± 22.7 | 0.258 |
Increased intervertebral height (mm) | |||
L4/5 | 3.4 ± 1.8 | 2.6 ± 1.4 | 0.058 |
L5/S1 | 2.4 ± 1.6 | 3.0 ± 1.8 | 0.362 |
MacNab | |||
(excellent/good/fair/poor) | 16/12/1/2 | 36/18/8/3 | 0.917 |
Excellent/good rate | 90.3% | 84.6% | 0.656 |
Complications, n (%) | 1(3.2%) | 2(3.1%) | 1.000 |