Biomechanical Factors in Etiology of the So-Called Idiopathic Scoliosis (Adolescent Idiopathic Scoliosis [AIS]. Dates of Discoveries. Classification, Rules of the Therapy and Prophylaxis

Abstract

Developmental factors of the so-called idiopathic scoliosis were secret over many centuries [1-11]. The biomechanical causes of the deformity were found and described in years 1984-2007. In the development of scoliosis, the main factor is the habit of standing ‘at ease’ on the right leg, and gait is another one. These two biomechanical factors appear because of the asymmetry of hips movement. In the right hip the adduction, and often internal rotation and extension, are limited. The restriction of movement of the right hip is one of the eight symptoms of the “Syndrome of Contracture and Deformities (SofCD) according to Prof. Hans Mau and Lublin observations. This restriction enables the easy “standing” on the right leg such position is very comfortable thanks to a better stabilization, but with the time it may cause the left convex curve in lumbar spine. The other influencing factor is connected with gait. When the movement in right hip is maximally limited the compensative movement in pelvis and in spine during walking appears and it is the cause of rotation deformity and stiffness of the spine. All points in pathology are connected with various “models the hip’s movement”. In result there are three groups and four types of scoliosis. In the article, the author presents the new Lublin classification, new tests in examination and a rules of the new treatment and causal prophylaxis of this spine deformity