Chondrodiatasis is a limb lengthening technique involving slow, controlled, symmetric epiphyseal distraction. The technique has significant advantages over other correction methods that involves osteotomies. We have used this methods with other surgical technique to lengthen limbs in 2 children with leg-length discrepancies or with angular deformities. Shortely after initial lengthening, the growth plate seemed maintain its function. But, several years later, the growth plate fused. In spite of many report that chondrodiatasis having many complications, there was no special complications in our cases. In the absence of definite proof, we decide to use this technique clinically almost during the last two years of the growth period.