Table 3.

Comparison of complications between single-level and multi-level vertebral resection

	Single-level group (n = 54)	Multi-level group (n = 49)	P values
Age (years), mean (SD)	35.9 (14.1)	35.8 (14.1)	0.984
Events per patient, mean (SD)	1.26 (1.07)	1.92 (1.62)	0.031*
Surgical duration (min), mean (SD)	453 (187)	616 (190)	< 0.001*
Estimated blood loss (ml), mean (SD)	1771 (1051)	2284 (1594)	0.189
Hospital stay (days), mean (SD)	17.0 (6.7)	26.9 (15.9)	< 0.001*
Large vascular injury, n (%)	6 (11.1%)	1 (2.0%)	0.151
Dural tear, n (%)	8 (14.8)	10 (20.4)	0.455
Pleural injury, n (%)	14 (25.9)	7 (14.3)	0.143
Neurological deterioration, n (%)	12 (22.2%)	11 (22.4%)	0.978
Cerebrospinal fluid leakage, n (%)	11 (20.4%)	7 (14.2%)	0.417
Respiratory complications, n (%)	2 (3.7%)	12 (24.5%)	0.002*
Chest complications, n (%)	4 (7.4%)	26 (53.1%)	< 0.001*
Intestine infection, n (%)	1 (1.6%)	0	1.000
Wound healing problems, n (%)	1 (1.6%)	4 (8.2%)	0.303
Hematological complications, n (%)	3 (5.6%)	9 (18.4%)	0.043*
Hardware malposition, n (%)	1 (1.6%)	2 (4.1%)	0.932
Cardiovascular complications, n (%)	0	1(2.0)	0.476
Intracranial hemorrhage, n (%)	1 (1.6%)	1 (2.0%)	1.000
Urinary complications, n (%)	3 (5.6%)	0	0.244
Chylous leakage, n (%)	0	2 (4.1%)	0.224

Comparison was conducted utilizing unpaired student t test, Mann–Whitney U test, Chi-squared test or Fisher’s exact test accordingly

^*Significantly different at P < 0.05