…Even if the external force is slight each time, repeated application to the same part of the bone can cause a fracture in that part, similar to the phenomenon of metal fatigue. This is called a fatigue fracture. Also, if there is some kind of disease in the bone itself, and an external force that would not cause a fracture in a normal bone causes a fracture, it is called a pathological fracture. Based on the way the fracture line is formed, fractures can be divided into complete and incomplete fractures. … *Some terms that mention "pathological fracture" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…一回一回の外力はたとえ軽微であっても骨の同一部位に繰り返し加えられると,金属の疲労現象のようにその部に骨折が生じる場合があり,これを疲労骨折fatigue fractureという。また骨自体になんらかの病変があって,正常な骨であれば骨折しない程度の外力によって骨折を生じる場合を病的骨折pathological fractureという。骨折線の入り方からみると,完全骨折と不完全骨折に分けられる。… ※「pathological fracture」について言及している用語解説の一部を掲載しています。 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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