Scoliosis - scoliosis

Japanese: 脊椎側彎症 - せきついそくわんしょう（英語表記）scoliosis

Also called scoliosis. A condition in which the spine curves to the right or left. In many cases, the spine is also rotated. It was said to be rare in Japan, but in recent years it has become common among elementary and junior high school students, with an incidence rate of 0.3-0.5%. The degree of curvature is expressed by the angle made by the vertebrae at the top and bottom of the scoliosis. Mild cases are not noticeable, but when it exceeds 15 degrees it becomes apparent to the outside world, and the heights of the shoulders and shoulder blades become different. When bending forward, the ribs on the convex side of the spine bulge backwards.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

側彎症ともいう。脊柱が右または左に湾(彎)曲した状態。多くの場合脊柱の回旋を伴う。日本には少ないといわれてきたが，近年は小･中学生に多くみられるようになり，発生率は0.3～0.5％といわれる。湾曲の程度は，側彎の上端の椎骨と下端の椎骨がつくる角度で表される。軽症のものでは目立たないが，15度を超えると外見上も明らかとなり，両肩や肩甲骨の高さが異なってくる。前屈すると，脊柱の凸側の脊部の肋骨が後方にふくらむ。

出典　株式会社平凡社世界大百科事典第２版について　情報

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