Juvenile thoracic kyphosis, known as „Scheuermann’s Disease”, is characterized by deepening of the thoracic kyphos and changes is the vertebral bodies, taking place during the period of intensive growth of the young organism. The purpose of our article is to present the “EGO” extending orthopedic brace, which corrects spinal deformities on the sagittal plane. In the EGO brace correction of thoracic kyphosis is obtained by a three-point support with stabilized pelvis: anteriorly on the stemum, posteriorly at the peak of the kyphos. In order to obtain proper correction of thoracic kyphosis, it is necessary to force the pelvis into a posterior tilt through high support of the abdominal integuments and rib arches and low support on the buttocks posteriorly, which affects the reduction and stabilization by clinical and radiological testing. Among the indications for the application of the EGO brace are various forms of non-permanent kyphotic deformities of the thoracic spine in the early phase of their development, thus prior to indications for the comprehensive conservative treatment program developed at the Lublin center for juvenile thoracic kyphosis: a multistage treatment using extending braces after preparation by physiotherapy. The EGO orthopedic brace is also successfully applied after the completion of staged correction in plaster casts, when the vertebral bodies have been reconstructed. The task of the brace at that point is to fix the correction that has been obtained.