[Limb salvage procedure for osteosarcoma].
D001859:Bone Neoplasms / Q000601:surgery*; D002648:Child; D003131:Combined Modality Therapy; D006801:Humans; D007719:Knee Joint / Q000601:surgery; D007720:Knee Prosthesis; D012516:Osteosarcoma / Q000532:radiotherapy / Q000601:surgery*