Medial Calcar Support and Radiographic Outcomes of Plate Fixation for Proximal Humeral Fractures

Table 5

Prognostic factors of redisplacement of fracture reduction in patients with proximal humerus fracture.

Variables	Univariate		Multivariate^†
	OR^a (95% CI^b)	value	OR (95% CI^b)	value
Age	1.03	0.174	—	—
Female gender	1.64	0.371	—	—
Shoulder dislocation	0.17	0.105	—	—
Timely operation^c	0.38	0.034	0.56	0.381
Locked platin	0.16	0.000	0.08	0.002
Varus collaps	34.67	0.000	52.6	0.000
Disrupted calcar	2.36	0.059	3.10	0.096
Diabetes mellitus	0.82	0.660	—	—
Chronic kidney disease	1.89	0.187	—	—
Chronic liver disease	1.24	0.686	—	—

Multivariate: including age, sex, and all variables with univariate value < 0.05.
^aOR: odds ratio; ^bCI: confidence interval; ^ctimely operation: operation performed <8 hours after fracture; ^dvarus collapse: >20° varus on immediate postoperative follow-up radiographs.
Statistical significance ( < 0.05).