Table 3.

Reoperations in 190 patients with a proximal humeral fracture treated with a locking plate

Indication	No calcar screws (n = 93)	Calcar screws (n = 97)	Relative risk (95% CI)	p value
Fixation failure	12 (13)	2 (2)	6.3 (1.4–27.2)	0.01 a
Deep infection	4 (4)	6 (6)	0.7 (0.2–2.4)	0.6 a
Avascular necrosis	1 (1)	1 (1)	1.0 (0.06–16.4)	1.0 a
Local pain	3 (3)	2 (2)	1.6 (0.3–9.2)	0.6 a

Percentages in parenthesis

CI confidence interval

^az statistics