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. 2017 Sep;5(5):296–301.

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Copyright: © BY THE ARCHIVES OF BONE AND JOINT SURGERY

PMC Copyright notice

Proceeding trend of DJD in massive osteoarticular allograft in children with distal femoral tumors (Case 22). (A) Radiograph of before allograft procedure showing no DJD; (B) Radiograph of immediately after allograft procedure showing grade 0 DJD; (C) Radiograph of 1 year after allograft procedure showing grade 1 DJD (D) Radiograph of 2 years after allograft procedure showing grade 2 DJD; (E) Radiograph of 4 year after allograft procedure showing grade 3 DJD; (F) Radiograph of 13 years after allograft procedure showing grade 4 DJD.(Kallegren & Lawrence osteoarthritis grading system).