Quadriceps contracture

Japanese: 大腿四頭筋拘縮症 - だいたいしとうきんこうしゅくしょう（英語表記）Quadriceps contracture

Also known as quadriceps shortening syndrome, this condition occurs when the muscle tissue of the quadriceps becomes scarred, causing functional impairment, and is seen in growing children aged 5 to 6 years old. This condition was reported as early as 1946, but was thought to be congenital at the time. However, in the 1970s, cases began to occur frequently across the country, becoming a social problem. In response, the Japan Medical Association established a review committee in 1974, and clarified that the causes were either congenital or due to subcutaneous or intramuscular injections into the affected area.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

大腿四頭筋短縮症ともいう。大腿四頭筋の筋組織が瘢痕（はんこん）化し，機能障害を起こすもので，5～6歳の成長期の小児にみられる。この疾患は1946年にすでに報告されていたが，当時は先天的なものと考えられていた。しかし，70年代に入って各地で多発し，社会問題となった。そこで，日本医師会は74年，検討委員会を設け，その原因として，先天的なものと当該部位への皮下･筋肉注射によるものとがあることを明らかにした。

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

<<: Daidairizu - Daidairizu

>>: Substitute execution - Daitaishikkou