Hip fractures following intramedullary nailing fixation for femoral fractures

•The incidence of secondary hip fractures (SHFs) after nailing fixations for femoral fractures was 0.7%.•The absence of femoral head fixation was significantly associated with SHF following intramedullary nailing for femoral shaft fractures.•There were two reoperations (16.7%) following management of secondary femoral neck fractures.•Secondary trochanteric fracture patients were less likely to regain walking ability than secondary femoral neck fracture patients.