Fracture | Spondylolisthesis | Disc herniation | Statistics | p Value | ||
---|---|---|---|---|---|---|
Intraoperative blood loss (mL) | Minimally Invasive | 50 (90–50) *∆ | 100 (200–50) | 200 (200–100) | χ2 = 17.665 | < 0.001 |
Open | 100 (200–50) *∆ | 200 (400–200) | 200 (400–200) | χ2 = 21.381 | < 0.001 | |
Operation time (minutes) | Minimally Invasive | 100 (135–90) *∆ | 150 (180–150) | 150 (225–120) | χ2 = 12.831 | 0.002 |
Open | 120 (170–112.5) | 135 (180–120) | 150 (180–120) | χ2 = 1.413 | 0.493 | |
Postoperative hospital stay (days) | Minimally Invasive | 4 (5–4) | 5 (5.5–4) | 5 (6–4) | χ2 = 5.360 | 0.069 |
Open | 4.5 (6.5–3.5) * | 6 (7–5) | 5 (6–4) * | χ2 = 12.248 | 0.002 |