Risk factors for contralateral hip refractures in patients aged over 80 years with intertrochanteric femoral fractures.

Purpose: The purpose of this study was to identify which of the risk factors would contribute to the contralateral fracture in very elderly patients after intramedullary nail fixation.

Methods: Clinical data of 227 intertrochanteric fracture patients aged 80 years or older were retrospectively reviewed. Intramedullary nails (IMNs) were used on all of the patients.