This retrospective cohort study evaluated closed reamed exchange nailing for femoral shaft nonunions previously treated with an intramedullary nail. 42 consecutive patients were analyzed at a Level I trauma center over 15 years. The study identifies which patients succeed with exchange nailing alone and which require alternative treatment.
A femoral nonunion showing up in your clinic after a prior nail is a common board scenario and a real management decision. Exchange nailing is the workhorse treatment, but success is not guaranteed — this paper defines exactly when to trust it and when to plan something bigger.
When you see a hypertrophic femoral nonunion in a patient who had immediate weight bearing after a closed fracture, exchange nailing alone is highly effective (86% union rate). Go bigger on the nail. At least 2 mm larger than the index nail. And weight bear postoperatively.
When the nonunion is atrophic, infected, or follows an open fracture, exchange nailing alone is likely to fail. Consider bone grafting, plating, or in refractory infected cases, antibiotic beads plus staged reconstruction from the outset.
One practical pearl: obtain intraoperative cultures routinely before giving prophylactic antibiotics during exchange nailing. Occult low-grade infection may be driving failure, and identifying the organism early changes the entire postoperative antibiotic course.
This retrospective cohort study evaluated closed reamed exchange nailing for femoral shaft nonunions previously treated with an intramedullary nail. 42 consecutive patients were analyzed at a Level I trauma center over 15 years. The study identifies which patients succeed with exchange nailing alone and which require alternative treatment.
A femoral nonunion showing up in your clinic after a prior nail is a common board scenario and a real management decision. Exchange nailing is the workhorse treatment, but success is not guaranteed — this paper defines exactly when to trust it and when to plan something bigger.
When you see a hypertrophic femoral nonunion in a patient who had immediate weight bearing after a closed fracture, exchange nailing alone is highly effective (86% union rate). Go bigger on the nail. At least 2 mm larger than the index nail. And weight bear postoperatively.
When the nonunion is atrophic, infected, or follows an open fracture, exchange nailing alone is likely to fail. Consider bone grafting, plating, or in refractory infected cases, antibiotic beads plus staged reconstruction from the outset.
One practical pearl: obtain intraoperative cultures routinely before giving prophylactic antibiotics during exchange nailing. Occult low-grade infection may be driving failure, and identifying the organism early changes the entire postoperative antibiotic course.