| 翻訳と辞書 |
| anterior cruciate ligament injury ： ウィキペディア英語版 |
anterior cruciate ligament injury
The anterior cruciate ligament ("ACL") is an important, internal, stabilizer of the knee joint, restraining hyperextension. It is injured when its biomechanical limits are exceeded (over stretched), often with a hyperextension mechanism.
Formerly, ACL injuries occurred most often in a sports contact injury, when other structures were frequently involved. A particularly severe form of the contact injury is called the "unhappy triad" or "O'Donaghue's triad", and involves the anterior cruciate ligament, the medial collateral ligament, and the medial meniscus. Presently, ACL injury is more commonly a non-contact injury, such as a dismount from a layup in basketball. Both forms occur more frequently in athletes than in the general population and are prevalent in alpine skiing, association football, American football, Australian rules football, basketball, rugby, professional wrestling, martial arts, and artistic gymnastics. It is also known to be about three times more common in women than men.〔
The consequences of the injury depend on how much the stability of the knee is affected, and the extent to which other structures have been involved, and this can vary on a case-by-case basis. If instability is evident, particularly rotatory instability, then the menisci will get injured, sooner or later, setting the scene for progressive, degenerative, arthritis of the knee.
==Signs and symptoms==
The combination of "pop" during a twisting movement or rapid deceleration, together with inability to continue participation, and followed by early swelling, is said to indicate a 90% probability of rupture of the anterior cruciate ligament.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「anterior cruciate ligament injury」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|