The Gustilo-Anderson classification system as predictor of nonunion and infection in open tibia fractures.

PURPOSE: We sought to conduct the largest retrospective study to date of open tibia fractures and describe the incidence of complications and evaluate the potential predictive risk factors for complications.

METHODS

Patients with open tibia fractures treated with reamed intramedullary nail (IMN) across a 10-year period were evaluated. Patient charts were reviewed for demographics, type of open fracture (T), comorbidities, and postoperative complications. A multivariate model was conducted to determine the risk factors for each type of complication.

RESULTS

Of the 486 patients with open tibia fractures, 13 % (n = 64) had infections, 12 % (n = 56) had nonunions, and 1 % (n = 7) had amputations. TIII fractures had much higher rates of each complication than TI and TII fractures. Fracture type was the only significant risk factor for both nonunion and infection.

CONCLUSION

Our study found that the Gustilo grade of open tibia fracture is by far the greatest predictor of nonunion and infection.