Intramedullary nailing for open fractures of the femoral shaft: evaluation of contributing factors on deep infection and nonunion using multivariate analysis

Five fractures (5.6%) developed deep infections: one Gustilo type II and four type III. Multivariate analysis revealed that only Gustilo type significantly correlated with occurrence of deep infection (p < 0.05). Nonunion occurred in 12 fractures (14.1%). Multivariate analysis revealed that only fracture grade by AO type significantly correlated with occurrence of nonunion (p < 0.02).