Table 3.
Variable | Preoperative |
p-value | Early follow-up (<5 days) |
p-value | Late follow-up (10–14 months) |
p-value | |||
---|---|---|---|---|---|---|---|---|---|
Subsidence (–) | Subsidence (+) | Subsidence (–) | Subsidence (+) | Subsidence (–) | Subsidence (+) | ||||
Spinal canal area (mm2) | 77.4 ± 42.9 | 81.7 ± 48.8 | 0.740 | 113.2 ± 49.8 | 110.8 ± 48.9 | 1.000 | 162.5 ± 64.8 | 121.4 ± 52.7 | 0.184 |
Ligament flavum thickness (mm) | 4.2 ± 1.2 | 4.2 ± 0.6 | 0.618 | 3.7 ± 1.0 | 3.6 ± 0.7 | 0.599 | 2.5 ± 0.8 | 2.6 ± 0.6 | 0.719 |
Ligament flavum area (mm2) | 127.6 ± 38.9 | 111.9 ± 34.5 | 0.293 | 105.6 ± 31.0 | 92.5 ± 20.3 | 0.319 | 69.3 ± 29.0 | 72.4 ± 20.2 | 0.825 |
Values are presented as mean±standard deviation.