Compared to congenital tibial pseudarthrosis, congenital tibial kyphosis is less well known because the incidence of the latter is lower than that of the former, and many people may even confuse the two diseases. Congenital tibial curvature is a rare deformity of the tibia in children, which is usually found at birth with the lower leg protruding backward, i.e., bowing backward, and with shortened limbs. However, the characteristic bending of the tibia in this type of deformity does not break, and is therefore different from congenital tibial pseudarthrosis. In addition, congenital tibial pseudarthrosis is often accompanied by destruction of bone even though it does not break temporarily, and the deformity is uniquely bowed toward the anterior lateral side. Typical case: female, 9 years old, right calf deformity shortened since birth, never fractured. x-ray showed posterior projection and shortening of the right tibia about 8 cm, with intramedullary growth of the distal tibia and deformity of the first metatarsal of the right foot. The tibia was osteotomized at both ends to correct and lengthen the lower leg. Figure 1 Shortening of the right tibia Figure 2 Posterior arch of the distal tibia (Recurvaturm) Figure 3 Ring brace fixation Figure 4 Postoperative X-ray Figure 5 Post correction X-ray, lengthening and correction Figure 6 Lower limb isometric