This is a complex question that needs to be analyzed in the context of many specific situations. In general, there is no one fixed answer. It is not that this procedure must be done at 8 months and not at 1 year, or that it must be done at 2 years and absolutely not at 6 months. But there are some general principles. Most deformities require surgery within 2-3 years of age. In the past, due to the lack of understanding of the disease and surgical experience, the concept that “we should wait until we are older, around 12 years old, when we are mature” should be abandoned.