Idiopathic scoliosis is a structurally fixed lateral curvature of the spine with a rotatory component. There is at least a 10 degree curvature as demonstrated by upright spine roentgenograms by the Cobb method (Weinstein, 1994).
Scoliosis ... Idiopathic scoliosis is a structurally fixed lateral curvature of the spine with a rotatory component. There is at least a 10 degree curvature as demonstrated by upright spine roentgenograms by the Cobb method (Weinstein, 1994). Scoliosis may occur secondary to other hereditary disorders including Marfan syndrome (154700), dysautonomia (223900), neurofibromatosis (see 162200), Friedreich ataxia (see 229300), and muscular dystrophies. - Genetic Heterogeneity of Susceptibility to Scoliosis Loci for idiopathic scoliosis have been mapped to chromosome 19 (IS1), chromosome 17 (IS2; 607354), chromosome 8 (IS3; 608765), chromosome 9q31-q34 (IS4; 612238), and chromosome 17q25-qter (IS5; 612239).