[Analysis on deformity of disk associated with internal derangement of TMJ].

Nihon Ago Kansetsu Gakkai Zasshi Pub Date : 1989-01-01
K Wajima, M Sannta, A Yazaki, M Ikawa, Y Sumii, H Kogai, A Suzuki, H Nakagawa, T Nomoto
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Abstract

Internal derangement of temporomandibular joint has been studied mainly arthrographically about disk position, but it was reported that morphologic alterations and histo-chemical changes of disk were frequently observed in joints with internal derangement. The aim of this investigation was to study the relationship between deformity of disk and the kind of internal derangement of TMJ (anterior disk displacement with or without reduction). We analysed arthrographically the configuration of anterior displaced disk according to the criteria of Westesson. Deformity of disk was seen in 35 joints in 60 joints (58.3%) associated with anterior disk displacement with reduction, and 51 joints in 66 joints (77.3%) without reduction. Statistically significant difference existed between the distribution of disk configuration in with-reduction and without-reduction. We analysed the relationship between distribution of disk configuration and age, clicking period and locking period. In cases long suffering from clicking and locking, no-deformed disk were seen, and any certain type of deformed disk did not increase. From above results it was suggested that there was a strong relationship between distribution of disk configulation and types of anterior disk displacement (with or without reduction).

[椎间盘畸形合并颞下颌关节内脱位分析]。
对颞下颌关节内紊乱的关节盘位置的研究主要集中在关节影像学上,但有报道称,关节内紊乱常发生关节盘的形态学改变和组织化学改变。本研究的目的是研究椎间盘畸形与TMJ内移位类型(前椎间盘移位伴或不伴复位)之间的关系。我们根据weesson标准对前移位椎间盘的形态进行了关节造影分析。椎间盘畸形60个关节中有35个(58.3%)伴有前盘移位合并复位,66个关节中有51个(77.3%)未伴有前盘复位。有复位和没有复位的磁盘配置分布有统计学上的差异。分析了盘形分布与机龄、咔嗒期和锁紧期的关系。在长期遭受咔哒和锁定的情况下,未见椎间盘变形,任何类型的椎间盘变形均未增加。从以上结果可以看出,椎间盘构型的分布与前盘移位的类型(有无复位)之间有很强的关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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