Table 2.

Postoperative complications

Outcomes	Effect measure	Effect model	Heterogeneity	Significance
Bruising	OR: 0.43; 95% CI: 0.28–0.64	Fixed	0%	<0.0001
Hematoma	OR: 0.35; 95% CI: 0.21–0.59	Fixed	0%	<0.0001
Sensory disturbance	OR: 0.63; 95% CI: 0.37–1.07	Fixed	35%	0.09
Infection	OR: 0.38; 95% CI: 0.14–1.01	Fixed	0%	0.05
Phlebitis	OR: 0.98; 95% CI: 0.46–2.07	Fixed	0%	0.95

OR: odds ratio