Abstract
Objective To analyze the epidemiological features and trends of coracoid process fractures from 2003 through 2012 in our hospital. Methods The clinical data were collected of the patients with coracoid process fractures who had been treated between January 2003 and December 2012 in our hospital. The patients' gender, age and fracture type of Ogawa classification were documented. The data from January 2003 to December 2007 were assigned into group A and those from January 2008 to December 2012 into group B. The 2 groups were compared to find out the general epidemiological characteristics and trends in the recent 10 years. Results A total of 76 patients with coracoid process fractures were collected, including 57 males and 19 females. The total male/female ratio was 3.00:1. The coracoid process fractures predominated in an age range of 41 to 50 years (30.26%). According to Ogawa classification, there were 34 cases (44.74%) of type I and 42 ones (55.26%) of type Ⅱ. The male/female ratio was 3.63:1 in group A of 37 patients and 2.55:1 in group B of 39 patients. The mean age of group A was 41.4±15.5 years and that of group B 43.6±18.6 years. The fractures predominated in age groups of 31 to 40 and 41 to 50 years in group A, both accounting for 29.73% (11/37), and in the age group of 41 to 50 years in group B, accounting for 30.77% (12/39). There were no significant differences between the 2 groups in male/female ratio, mean age or distribution of age (P > 0.05). The most frequent fracture type was type II in group A, accounting for 67.57% (25/37), and type I in group B, accounting for 56.41% (22/39). The difference in Ogawa fracture type distribution was statistically significant between the 2 groups (P < 0.05). Conclusions The peak age of coracoid process fractures was from 41 to 50 years. There was an increasing trend in the mean age. There were more male patients than female ones. The high-frequency type was Ogawa type Ⅱ. Key words: Shoulder fractures; Epidemiology; Gender distribution; Age distribution
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