42.下顎骨折,骨折線從第二大臼齒前方往下延伸並垂直於下顎下緣,下列敘述何者正確?
(A)是有利性骨折(favorable fracture),容易移位,傾向閉合性復位(closed reduction)
(B)是有利性骨折,不易移位,傾向開放性復位(open reduction)
(C)是不利性骨折(unfavorable fracture),容易移位,傾向開放性復位(open reduction)
(D)是不利性骨折,不易移位,傾向閉合性復位(closed reduction)
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統計: A(115), B(129), C(721), D(80), E(0) #2742242
統計: A(115), B(129), C(721), D(80), E(0) #2742242
詳解 (共 3 筆)
#7402049
角度骨折(mandibular angle fracture)
- 骨折線由後上 → 前下(↘)
- ✅ Favorable
- 肌肉越拉越卡住
- 骨折線由前上 → 後下(↙)
- ❌ Unfavorable
- 肌肉一拉就分開
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#7388507
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參考來源
Contemporary Oral and Maxillofacial Surgery 7th Edition CH25 P523, 527
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