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IMMEDIATE CHANGE OF THE TEMPOROMANDIBULAR JOINT SYMPTOMS AFTER EVRO(EXTRAORAL VERTICAL RAMUS OSTEOTOMY) WITHOUT FIXATION IN THE TMJ INTERNAL DERANGEMENT PATIENTS

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Abstract

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¾Ç°ñÀÇ °ñÀý´ÜÀ» ÅëÇÏ¿© °üÀý³»¿¡ ¿Ü°úÀû ¼ú½ÄÀ» °¡ÇÏÁö ¾ÊÀº ä °úµÎ-¿øÆÇ °ü°è¸¦ ÀçÈ®¸³
ÇÏ´Â ¼ú½Ä µî ´Ù¾çÇÑ ¹æ¹ýµéÀÌ ¼Ò°³µÇ¾î¿Ô´Ù. ƯÈ÷ °üÀý³»ÀÇ ¿Ü°úÀû ¼ú½Ä¿¡ µû¸¥ ¿©·¯°¡Áö
´ÜÁ¡À» ÇÇÇϸ鼭 °úµÎÀÇ ÀüÇϹæ À̵¿¿¡ ÀÇÇÑ °úµÎ-¿øÆÇ °ü°èÀÇ È¸º¹, °üÀý°ø±ØÀÇ Áõ°¡, µ¿
ÅëÀÇ °¨¼Ò, °úµÎÀÇ Á¡ÁøÀûÀÎ ÀçÇü¼º ´É·ÂÀ¸·Î ÀÎÇÑ ÇüÅÂÀû º¯È­ µîÀÇ È¿°ú¸¦ ¾òÀ» ¼ö ÀÖ´Â
°úµÎ Àý´Ü¼ú(condylotomy)¿¡ ´ëÇÏ¿© ¼±ÇеéÀÇ º¸°í°¡ ÀÖ¾î¿Ô´Ù.
ÀÌ¿¡ °üÇÑ ¿©·¯ ¹®ÇåÀ» °íÂûÇÑ °á°ú, ¹«Á¶°ÇÀûÀÎ ÇغÎÇÐÀû °ü°èÀÇ È¸º¹º¸´Ù´Â ±×¿Í °°Àº
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ÁúȯÀÇ Æ¯¼º»ó ±× °úÁ¤ÀÌ ½±Áö ¾ÊÀº °æ¿ì°¡ ¸¹À¸¹Ç·Î º¸Á¸Àû óġ¸¦ ½ÃÇàÇϸ鼭 Áõ»óÀÇ °³
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Àû ¼ú½ÄÀ» ½ÃÇàÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.
ÀÌ¿¡ ÀúÀÚµéÀº ¾Ç°üÀý ºÎÀ§ÀÇ °üÀýÀâÀ½°ú µ¿ÅëÀ» È£¼ÒÇϴ ȯÀÚµé Áß ÀÚ±â°ø¸í¿µ»ó¿¡¼­
°üÀý¿øÆÇÀÇ Àü¹æ º¯À§°¡ °üÂûµÇ¸ç, ±³ÇÕ¿¡ Å« ¹®Á¦°¡ ¾ø´Â ȯÀÚµéÀ» ´ë»óÀ¸·Î ÇϾÇÁö ¼öÁ÷
°ñ Àý´Ü¼úÀ» ½ÃÇàÇÏ°í, ¼úÈÄ 2°³¿ùÀÌ °æ°úµÈ ½ÃÁ¡¿¡¼­ »ó±â ȯÀÚµéÀÇ ¾Ç°üÀý Áõ»óÀ»
HelkimoÀÇ ¹æ¹ý¿¡ ÀÇÇÏ¿© ºñ±³ÇÔÀ¸·Î½á ¼úÈÄ Ãʱ⠾ǰüÀý Áõ»óÀÇ º¯È­¿¡ ´ëÇÏ¿© °üÂûÇÏ¿©
¹®Çå °íÂû°ú ÇÔ²² º¸°íÇÏ´Â ¹ÙÀÌ´Ù.

TMJ internal derangement has been treated by the conservative methods and the
surgical methods according to the clinical state. There are several surgical methods for
treatment of TMJ internal derangement, such as disk repositioning and repair,
diskectomy with and without grafts, articular surface contouring, high condylectomy,
condylotomy, and arthroscopic surgery etc. Especially, it has been reported thar the
condylotomy produced the increase of the joint space, the pain relief, the elimination of
the joint dysfunction due to the antero-inferiorly movement of the condyle, and the
condylar morphologic change resulted from the progressive remodeling in TMJ without
the surgical intervention within the TMJ.
We have performed EVRO (extraoral vertical ramus osteotomy) to the 5 patients
diagnosed as ADDWR (Anterior disk displacement with reduction) from June 1997 to
December 1997 in the Chin-Hae military hospital. We diagnosed them with MRI and
clinical examination. And we compared the preoperative symptoms with postoperative 2
months symptoms. They were compared by Helkimo index, mandibular mobility index,
and pain scale.
Anamnestic Index (Ai) was changed from 2.0 preoperatively, clinical dysfunction score
from 11.8 to 2.8 and Clinical Dysfunction Index (Di) from 2.8 to 1.2. The pain scale of
the affected side was changed from 4.4 to 2.6 and that of the nonaffeted side from 2.2
to 2.6. The maximal mouth opening was changed from 35.2§® to 40.9§®, right lateral
excursion from 7.8§® to 8.0§®, left from 8.8§® to 7.0§®, and protrusion from 6.2§® to 6.2
§®.
In these results, we could not expect any excellent improvement of the clinical
symptoms during the immediate postoperative periods. But we could observe the
disappearance of the joint noise and the improvement of the clinical dysfunction score.
On the basis of the results of the previous investigations about condylotomy effect
which presented the condyle position were changed antero-inferiorly in the articular
fossa during the immediate postoperative period, the displaced condyle may prevent wide
mouth opening. Therefore it is elucidated that the improvement of the maximal mouth
opening and other functions were restricted during the immediate postoperative periods.
After long term follow-up period, the symptomatic and functional improvement will be
expected by the passive repositioning of the proximal segment. We report the
preliminary results with the related references.

Å°¿öµå

TMJ internal derangement; condylotomy effect; EVRO;

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