Abstract
A growth plate injury can lead to a total or partial epiphysiodesis. In the first case, a leg length discrepancy will occur, due to the growth arrest of the injured plate. The anticipation of the discrepancy at skeletal maturity is achieved with the Green and Anderson data, either with the arithmetic method, the growth remaining charts, or the Moseley straight line graph. In case of a partial excentric epiphysiodesis, the future growth will lead to a progressive angular deformity, and the prognosis can be approached with the Bowen graph. If the injury is located at the metaphyseal area, a temporary overgrowth can be observed, due to a delay in maturation of the ossification front. The growth velocity returns to a normal value usually after one or two years, but the final prognosis is difficult to establish. Finally, the growth plate acts as a remodelling factor for some metaphyseal and diaphyseal malunions. The potential of remodelling depends on the age of the child, the proximity of the malunion to the plate, and the plane of the deformity. A good knowledge of these rules can help to determine the tolerance levels of incomplete reductions of children's fractures.
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