Periprosthetic Femur Fracture Through a Large Osteolytic Lesion After Total Knee Arthroplasty.

Osteolysis due to polyethylene wear is a well-known complication associated with total knee arthroplasty (TKA). Here, we present the case of one failure that has been rarely reported. We report the case of a 51-year-old male who fractured through a large osteolytic lesion in his femur after a previous TKA. The patient presented 4 years after revision TKA after a fall and was found to have fractured through the large lesion. After a diagnostic workup, he was treated with open reduction and internal fixation (ORIF) of the distal femur fracture, and the fixation was augmented with a morselized femoral head allograft and ViviGen (LifeNet Health, Virginia Beach, VA). Osteolysis secondary to polyethylene wear and reactions to arthroplasty components continues to be an ever-present complication of TKAs.