Representative radiographs of cemented custom-made distal femoral megaprosthetic reconstruction after tumor resection. (A) Patient following resection of a conventional grade 2 chondrosarcoma with a 20 cm distal femoral defect reconstructed using a cemented custom-made distal femoral replacement (stem diameter 14 mm, fixation length 21 cm). (B) Patient with malignant epithelioid hemangioendothelioma treated with distal femoral resection of 14 cm and reconstruction using a cemented custom-made megaprosthesis (stem diameter 16 mm, fixation length 17 cm), demonstrating aseptic loosening 6 years after implantation.