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何謂顳下頜關節脫位?

Posted By vickong pun     July 8, 2021    

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何謂顳下頜關節脫位?

  何謂顳下頜關節脫位?下頜骨髁狀突運動時滑出關節窩以外,超越關節運動的正常限度,以至不能自行複回原位者,稱為顳下頜關節脫位(dislocation of condyle)。
按部位可以分為前方脫位、後方脫位、上方脫位以及側方脫位,後三種主要見於外力損傷時。

臨床上以急性和復發性前脫位較常見,可以發生於單側或雙側。
後方脫位、上方脫位和側方脫位比較少見,其脫位的方向、位置由打擊的力量和方向決定,並常伴有下頜骨骨折和顱腦損傷症狀。

                    

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