Elongation of long bones is currently the most often performed by distraction osteogenesis method. After osteotomy of the diaphysis and bone fragments stabilization by external fixator the formed callus in interfragmental gap is sequentially stretching during the treatment process of gradual extension. Continuous optimization of the treatment plan during active elongation and neutral fixation can make a key contribution to the quality of bone tissue formation and consolidation, the appearance of a full bone, and significantly treatment time reduction. To optimize the treatment plan parameters the biomechanical study of bone regenerate behavior was prepared according to various criteria in characteristic stages of its consolidation and ossification.
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