Comparison between minimally invasive plate osteosynthesis and open reduction-internal fixation for proximal humeral fractures: a meta-analysis based on 1050 individuals

Table 3 Meta-analysis of reported complications

Outcomes	No. of trials	No. of patients: MIPO/ORIF	OR (95% CI)	P value	I² (%)	P value for heterogeneity
Nerve injury	4	143/162	4.88 (1.03, 23.2)	0.05	0	0.95
Impingement	4	154/179	0.96 (0.36,2.54)	0.94	0	0.94
Screw perforation	3	134/149	0.97 (0.42,2.23)	0.94	0	0.65
Implant loosening	6	222/281	0.70 (0.28,1.75)	0.44	24	0.25
Avascular necrosis	7	251/299	0.41 (0.16,1.05)	0.06	0	0.78
Delayed union or nonunion	6	207/307	0.37 (0.12,1.13)	0.08	0	0.97
Limited abduction	3	108/178	0.73 (0.17,3,26)	0.69	0	0.58
Varus	5	140/155	1.35 (0.47,3.90)	0.58	0	0.62

MIPO Minimally invasive plate osteosynthesis, ORIF Open reduction–internal fixation, OR Odds ratio, CI Confidence interval

ISSN: 1471-2474