Table 1 Baseline clinical data and perioperative parameters of patients who received TLIF using traditional bone delivery method (Control group) or the novel device (MIS device group)
Control group | MIS device group | Statistic | |||
|---|---|---|---|---|---|
Age (years) | 74.8 ± 6.4 | 74.5 ± 7.6 | p: 0.82 | ||
Sex (M: Male; F: Female) | M F | 38.2% 61.8% | M F | 38.5% 61.5% | p: 0.98 |
BMI (kg/m2) | 25.3 ± 4.5 | 25.9 ± 3.1 | p: 0.56 | ||
Operated level (s) | |||||
1 level | 17 | 11 | |||
2 levels | 12 | 20 | |||
3 levels | 5 | 7 | |||
4 levels | 0 | 1 | |||
Level | |||||
L2-3 | 5 (8.9%) | 7 (9.2%) | |||
L3-4 | 14 (25.0%) | 23 (30.3%) | |||
L4-5 | 27 (48.2%) | 34 (44.7%) | |||
L5-S1 | 10 (17.9%) | 12 (15.8%) | |||
Blood loss (mL) | 99.4 ± 73.2 | 64.6 ± 50.1 | p < 0.05 | ||
Operating time (min) | 241.5 ± 117.6 | 229.7 ± 76.8 | p: 0.31 | ||
Time to post-op ambulation (day) | 1.8 ± 0.9 | 1.6 ± 0.6 | p: 0.13 | ||
Days of admission (day) | 6.4 ± 2.7 | 6.1 ± 2.8 | p: 0.36 | ||