From: Hidden blood loss of minimally invasive hybrid lumbar interbody fusion: an analysis of influencing factors
Fusion segments(Proportion)
HBL(ml)
95%CI
2(42%)
360.46
275.39–445.53
3(46%)
449.30
332.94–565.64
4(12%)
527.68
334.75–717.61
F
1.450
p
0.240