Effect of intravenous low-dose norepinephrine on blood loss in non-tourniquet total knee arthroplasty under general anesthesia: a randomized, double-blind, controlled, single-center trial

Table 5 Comparison of complications between groups 3 days after surgery

	NE Group (n = 60)	C Group (n = 60)	χ²	P value
Complications			2.379	0.854*
None	40 (66.7%)	37 (61.7%)
Deep venous thrombosis	4 (6.7%)	2 (3.3%)
Intermuscular venous thrombosis	9 (15.0%)	10 (16.7%)
Swelling	5 (8.3%)	7 (11.7%)
Pain	1 (1.7%)	3 (5.0%)
Abnormal healing	1 (1.7%)	1 (1.7%)

ISSN: 1749-799X