Preservation of the knee joint in limb salvage of osteosarcoma in the proximal tibia - A case report

A 12-year-old boy with osteosarcoma in the proximal tibia underwent a succe ssful limb-saving operation with preservation of the epiphyseal and articul ar cartilage of the proximal tibia as a result of his remarkable response t o chemotherapy. There was no evidence of tumour invasion to the adjacent ph ysis, as demonstrated by image findings. The bone defect was reconstructed using autoclaved autogeneous bone with a vascularized fibula. The patient e xhibits excellent function of the affected limb, and the knee joint remains disease-free 55 months postoperatively.