Table 1.

Comparison of clinical characteristics of patients with ulna coronoid fractures among the four groups

	Mini plate group (n = 31)	Hollow screw group (n = 44)	Kirschner wire group (n = 62)	Steel wire suture group (n = 27)	p
Gender (male/female)	19/12	23/21	36/26	12/15	0.557
Average age (year)	38.8 ± 6.1	35.0 ± 6.9	35.5 ± 6.6	36.1 ± 6.4	0.076
Time between injury and surgery (d)	4.5 ± 1.1	4.8 ± 1.3	4.3 ± 1.3	4.4 ± 1.0	0.217
Regan-Morrey type
II	21	29	34	17	0.56
III	10	15	28	10
Cause of injury
Fall	17	23	44	18	0.186
Traffic injury	14	21	18	9
Laterality of injury
Left side	12	19	38	14	0.134
Right side	19	25	24	13
Combined injury
Dislocation of elbow joint	21	27	44	23	0.200
Simple ulna coronoid fractures	10	17	18	4

Notes: Measurement data or counting data were presented as mean ± standard deviation or number of cases; one-way analysis of variance (ANOVA) with replicate measurement or chi square test were used to compare multi-group data; a value of p < 0.05 was considered to be statistically significant