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「橈骨遠端骨折」
1. 發生率:橈骨遠端骨折極為常見,約佔平時骨折1/10。
2. 高風險族群:老年婦女、兒童及青年。
3. 好發處:骨折發生在橈骨遠端2~3cm範圍內,多為閉合性骨折。
分類
1. Colle’s fracture -appears as dinner-fork deformity from lateral projection. The patient contacts the ground on the ventral side of hand .[臨床案例 (四)]
五、六十歲的婦女常見,原因多半是跌落然後手撐地,跌倒時腕背屈掌心觸地,前臂旋前肘屈曲。骨折線多為橫形。骨折遠段向背側,橈側移位,近段向掌側移位,可影響掌側肌腱活動。
2. Smith's fracture - as reverse dinner-fork deformity. The patient contacts the ground on dorsal side of hand. [臨床案例 (三)]
較少見。骨折發生原因與Colle’s fracture相反,故又稱“反科雷氏”骨折。跌倒時腕掌屈,手背觸地發生橈骨遠端骨折。骨折遠端向掌側移位,骨折近端向背側移位。換句話說,Colles’ fracture是正常反應用手掌撐地造成的骨折,如果跌落的時候是用手背撐地,則嚴重的多,叫做Smith fracture。
3. Barton's fracture - an intra-articular fracture of the distal radius with dislocation of the radiocarpal joint. [臨床案例 (一)]
骨折是指通過橈骨遠端部分關節面的邊緣骨折,處理不好會影響上面的軟骨,將來容易退化性關節炎。
資料來源:http://www2.cmu.edu.tw/~cmcmd/ctanatomy/clinical/radiusfracture.html
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