Table 4.

Complications and 1-year mortality. OPF: open posterior fusion; PO: percutaneous osteosynthesis; * OPF vs. PO.

Complications	Group OPF	Group PO	Total	p Value *
n° of patients	42	36	78
Wound infection	5(11.9%)	1 (2.8%)	6 (7.8%)	0.024
Deep infection	2 (4.8%)	0	2 (2.6%)	0.037
Thromboembolism	2 (4.8%)	0	2 (2.6%)	0.031
Screw loosening	0	1 (2.8%)	1 (1.3%)	0.044
Hardware failure	0	0	0	-
Tardive neurological deficit	2 (4.8%)	1 (2.8%)	3 (3.8%)	>0.05
1-year mortality	9 (21.4%)	2 (5.5%)	11 (14%)	0.041