Megaprostheses for well-fixed TKA femoral fractures

The use of distal femoral replacement (DFR) prosthesis is an option for treating distal femoral periprosthetic fracture (PPF). It is particularly helpful when the distal femoral bone is small and not amenable to rigid fixation. We report the results of 13 distal femoral PPFs at an average age of 77.5 years that were treated by this technique. At a mean follow-up of 30.5 months, the average Knee Society Score and functional score were 82 and 20, respectively. All patients who were ambulatory before fracture, regained their ability to walk after the surgery. There was a revision surgery for treating patellar instability. DFR is a reliable treatment for distal femoral PPFs with poor bone stock that allows for early ambulation in an elderly and low-demand group of patients.