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In-Hospital Mortality Following Open and Closed Long Bone Fracture: A Comparative Study
Adam Adler1, Matthew R Boylan2, Carl Rosenberg3
1Department of Orthopaedic Surgery, SUNY Downstate Medical Center, Brooklyn, NY.
Background:
Open fracture is a serious orthopaedic injury that can lead to significant patient morbidity and mortality. There is limited data on the mortality risk for open compared to closed long bone fracture.
Methods:
The Nationwide Inpatient Sample was used to identify all patients who were admitted with a long bone fracture in the United States between 1998 and 2010. Cox proportional hazards regression modeling was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) of mortality.
Results:
After adjusting for age, gender, race, insurance, and comorbidities, the HR of mortality was 2.89 (95% CI, 2.56-3.28; p<0.001) for open compared to closed fracture. Stratified by anatomical site, the HR of mortality for open compared to fracture was 3.43 for femur (95% CI, 2.78-4.23; p<0.001), 2.81 for tibia or fibula (95% CI, 2.17-3.64; p<0.001), 2.54 for humerus (95% CI, 1.81-3.56; p<0.001), and 1.56 for radius or ulna (95% CI, 1.10-2.23; p=0.014).
Conclusions:
This data suggests that open fracture carries a worse prognosis compared to closed fracture at the same anatomical site.
