目的：探讨干骺端截骨延长引起骨骺板缩窄的发生机理。
Objective: to study the mechanism of epiphyseal growth plate narrowing due to limb lengthening by metaphyseal osteotomy.
骨髓基质细胞在损伤骨骺板处形成团块状软骨，未见类似骺板结构。
Bone marrow stromal cells could only repair the epiphyseal lesion with chondrocytes, and could not reform a normal structure of epiphysis.
结果：模型组大鼠胫骨骺板变薄，骨小梁裂纹、断裂者较多，网状结构破坏。
Result:The model group rats bone epiphysis were thinner, the trabecular cracks were more numerous and the net-structure was destroyed.
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