Abstract
Aims and objectives
The aim of this study was to statistically analyse the calcaneal fractures occurring in the community and distribution within the various age groups divided into decades.
Methods and materials
Records of calcaneal fractures were retrieved from the audit department of the hospital using the various codes to identify patients reviewed in the clinics or admitted to the hospital between 1997 and 2009. The data collected included the total number of calcaneal fractures, total number in either gender, age at the time of incident, month of the year the incident occurred. Annual distribution of incidence of forearm fractures was calculated for every year and every month of the year. The age of the patients was divided into decades. Linear regression analysis and correlation coefficients were calculated between the incidence of fractures and different variables including age, gender and the time of the injury.
Results
A total of 770 fractures were calculated including 511 males and 259 females (M/F=1.97). The average age of was 43.17 years (males=39.9 yrs, females=49.7 years). In both the sexes, there was a linear increase in the incidence of fractures in the first three decades of life with the rate of increase in males (R=0.999, r2=0.99) being 3 times that of females (R=0.96, r2=0.92). The incidence in females remained almost constant from 3rd decade to the 9th decade. The incidence in males reached a peak in the 3rd decade and then decreased steadily until the 10th decade. The incidence of fractures in females equalled that of males in the 8th decade; after which the incidence in males fell below females. There was a strong correlation between the increase in the incidence of fractures from February to August (R=0.9, r2=0.81) every year, after which the incidence reduced in the following months. There was a weak correlation between the increase in fractures from 1997 to 2009.
Conclusion
There is a significant increase in the incidence of calcaneal fractures in the first three decades of life in both males and females. In males, the rate of increase in fractures is almost thrice than that of females. It can be said that men in their late twenties are more prone to sustain calcaneal fractures than any other age group or females. More injuries should be expected in August compared to the other months of the year. Further studies need to be done to look into the mechanism of injury. This could be helpful in prevention and reduction of the fracture incidence in the young and active age groups.
