Abstract
We report two cases of osteochondritis dissecans of the multiple lesions in both knees.The first case was a 14-year-old boy who had left knee pain. On physical, radiographic, and MRI examinations, he was diagnosed with lateral discoid meniscus injury and osteochondritis dissecans of the femoral medial condyle in the left knee, and three osteochondritis dissecans lesions in both femoral condyles and lateral patellofemoral groove in the right knee. Because of the lack of symptons in his right knee, he underwent subtotal menisectomy of discoid and multiple drilling of the femoral medial condyle lesion in the left side as arthroscopic treatment. After three months for nonweight bearing protection of the left knee, he experienced right knee pain. On arthroscopic examination, he underwent bone grafting and internal fixation only to the right femoral medial condyle lesion.The second case was a 10-year-old boy who suffered from night pain of the left knee. On radiographic and MRI findings, he had multiple osteochondritis dissecans lesions of both knees. The lesions were lateral tibial condyle and patellar central ridge in the right knee, and femoral medial condyle, lateral tibial condyle, and patellar central ridge in the left knee. He underwent artroscopic drilling to some lesions with cartilaginous softening in both knees.
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