Table 2 Demographics of the subjects
Variables | Group A (Zero-P VA) | Group B (Plate and Cage) | p |
|---|---|---|---|
Patient no. | 13 | 30 | |
Sex (male/female) | 5/8 | 12/18 | 0.925 |
Age (year) | 59.15 ± 13.44 | 54.33 ± 12.61 | 0.265 |
Operation time (min) | 83.92 ± 12.89 | 91.03 ± 16.18 | 0.169 |
Intraoperative blood loss (mL) | 65.00 ± 30.14 | 57.33 ± 29.47 | 0.441 |
Follow-up time (month) | 12.31 ± 1.18 | 12.13 ± 2.47 | 0.811 |
Length of stay (day) | 9.31 ± 6.26 | 8.50 ± 4.19 | 0.808 |
Volume of drainage (ml) | 52.77 ± 36.33 | 40.17 ± 24.44 | 0.269 |
Drainage tube removal time (day) | 1.00 ± 0.00 | 1.2 ± 0.41 | 0.012 |
Level of treated segments | |||
C3–C4 | 5 | 2 | |
C4–C5 | 1 | 3 | |
C5–C6 | 4 | 18 | |
C6–C7 | 3 | 7 |