Analysis of adult pelvic fractures in 9 hospitals in Beijing, Tianjin and Tangshan from 2010 through 2011

Abstract

Objective To investigate the epidemiological features of adult pelvic fractures from 2010 through 2011 in Beijing, Tianjin and Tangshan. Methods The clinical data of adult pelvic fractures which had been treated in 9 hospitals in Beijing, Tianjin and Tangshan from January 2010 to December 2011 were collected through the PACS system and case reports checking system. Analytic items included gender, age, AO classification and Young-Burgess classification. Results A total of 1, 014 adult pelvic fractures were included, with 350 cases in Beijing, 116 in Tianjin and 548 in Tangshan. There were 557 males, with the largest constituent ratio (25.13%) in the age group of 41 to 50 years; there were 457 females, with the largest constituent ratio (21.44%) in the age group of 31 to 40 years. The male and female ratio was 1.47∶ l before the age of 60; there were much more female patients over 60 years old than the male ones, with the male to female ratio of 0.46∶1. By AO classification, the predominant type was 61-A (76.53%, 776/1, 014) ; by the Young-Burgess classification, the predominant type was LC (68.84%, 380/552) . There were significant differences between males and females in distributuion of AO types (P<0.05) . The average age of type 61-B patients (38.0±15.8 years) was significantly lower than that of type 61-A (41.6±16.1 years) and type 61-C (41.6±13.6 years) patients (P<0.05) . The average age of type CM patients (31.2±16.8 years) was significantly lower than that of type APC (47.9±17.9 years) , type LC (46.2±18.3 years) and type VS (51.7±20.9 years) patients (P<0.05). Conclusions In Beijing, Tianjin and Tangshan, adult patients were more likely to suffer a pelvic fracture of AO type 6l-A or of Young-Burgess type LC. The fracture favored male patients of 41 to 50 years old and female ones of 31 to 40 years old. Before the age of 60 years, there were more male patients than female ones; beyond the age of 60 years, there were more female patients than male ones. Key words: Pelvis; Fractures, bone; Sex distribution; Age distribution; Multicenter studies