Revision Distal Femoral Replacement Using Custom-made Stem and Cone to Augment Proximal Fixation

Achieving bone fixation during megaprosthesis revision presents a formidable challenge in view of the substantial loss. We report treatment failed distal femoral replacement an active 36-year-old male mechanic remotely treated for osteosarcoma. A custom stem and cone were manufactured to augment preserve stock within short segment remaining proximal femur. The patient returned regular function without need assistive devices. Follow-up imaging demonstrated stable implant at 1-year follow-up. While cones sleeves have vastly improved knee arthroplasty, custom-made femur was used obviate use total replacement.