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上頜骨骨折有哪些特殊症狀?

Posted By vickong pun     July 14, 2021    

Body

  

上頜骨骨折有哪些特殊症狀?

  上頜骨骨折有哪些特殊症狀?

(1)骨折移位及面部畸形:上頜骨骨折後如創傷力較小,可僅致線狀裂隙骨折或上頜骨前壁的骨折,上頜骨不發生移位。
如創傷力較大,可使上頜骨向後移位,骨折的上頜骨可因自身的重量而下垂,加上翼外肌向下、後的牽拉作用,導致面中部1\/3變長,面中部凹陷,形成所謂的“馬樣臉”畸形。
上頜骨骨折常出現牙齒咬關係錯亂。

(2)眼部症狀:上頜骨骨折常累及眼眶周圍組織而出現一系列眼部症狀,如眼瞼內及結膜下出血、眼球移位和複視等。
如眼球或視神經受損,則可導致失明。

(3)耳鼻症狀:上頜骨骨折常伴有鼻腔和鼻旁竇黏膜的撕裂而出血。
上顱骨與顱腦緊密相鄰,常合併顱底骨折,可出現腦脊液鼻漏和腦脊液耳漏。

(4)神經症狀:上頜骨與顱底骨關係密切,可累及多對腦神經,如嗅神經、展神經和麵神經等,導致相應的神經症狀。

當眶下緣骨折線經過眶下孔或有錯位時,壓迫眶下神經,出現眶下區及上唇的感覺麻木。

     ★ 护牙知多滴      

《上梁不正下梁歪,牙齒對應全身骨架》

  

《乳牙提前脫落了怎麼辦?》

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