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Table 3 Perioperative outcomes in the disease subgroups

From: A prospective cohort study of the accuracy and safety of robot-assisted minimally invasive spinal surgery

  

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

  1. Operation time, blood loss, and postoperative hospital stay are expressed as median (75% quartile–25% quartile). RMD rank means difference
  2. *Represents statistical significance compared with the spondylolisthesis group (p < 0.05), and ∆ represents statistical significance compared with disc herniation group (p < 0.05) undergoing same surgical method (minimally invasive group or open group)