The etiology of the So-Called Idiopathic Scoliosis (old description: adolescent idiopathic scoliosis [AIS]) was a secret over for more than two thousand years. In year’s 1984/1995 – 2007/2026 was described the biomechanical causes of the scoliosis (Tomasz Karski). The causes are connected with permanent standing ‘at ease’ on the right leg and with walking. Both these factors are in connection with limited movement of the right hip in some groups of children. This symptom – asymmetry of hip movements - is one of the signs of Syndrome of Contracture and Deformities (SofCD) according to Prof. Hans Mau and Lublin observations. In children with scoliosis we observe limited movement of the right hip – precisely – limited adduction in straight position of the joint.

The asymmetry of hip movements makes the influence of two “biomechanical parameters - of “standing” and of “walking”. In / at scoliosis children “the Standing ‘at ease’ is more or only on the right leg. Such standing start to be from the second year of child’s life. In some specifically model of hip movements - also “walking” causes additional influences to the pelvis and spine – causes curves and rotation distortion and deformation of the spine and its stiffness. In this article we give the rules of proper therapy and causal prophylaxis of this spine deformity.