Aspects of this topic are discussed in the following places at Britannica.
...equinovarus) is a congenital deformity in which the foot is twisted downward and inward because the ligaments and tendons are too short. Only infrequently are the muscles at fault. Idiopathic scoliosis (lateral curvature of the spine) usually makes its appearance during early adolescence. There is considerable plasticity of the tissues with latitude for correction of these deformities and...
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