Aged Blood Loss, Surgical--statistics & numerical data Blood Transfusion--statistics & numerical data Bone Nails Bone Neoplasms--complications Female Femoral Fractures--etiology Femur--diagnostic imaging Follow-Up Studies Fracture Fixation, Intramedullary--instrumentation Humans Length of Stay--statistics & numerical data Male Middle Aged Quality of Life Radiography Retrospective Studies Treatment Outcome