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Case #27: 17-year-old male with osteosarcoma of the left proximal tibia. (a) Preoperative X-ray. (b) Immediately after treatment with osteoarticular extracorporeal irradiated autograft. (c) 16 months after operation, collapse of the autograft occurred and (d) reoperation with total knee arthroplasty composite with the remaining autograft.
