외부계측법에 의한 상악골 재위치의 정확도에 관한 연구(II)

A study on accuracy of the maxillary repostioning in orthognatic surgery by the external measuring thchnique

It is very important to reposition the maxilla in two-jaw orthognathic surgery because the result of the surgery depends on the accuracy of the maxillary repositinoing. The conventional technique for the maxillary repositioning (Internal Measuring Technique) has some disadvantages and the following results are inaccurate. To solve this problem, we have tried to use the External Measuring Technique since 1988 and we can get more faviorable results. The feature of our technique is like these : 1, it is neccesary to insert a Kirshner wire near the frontonasal suture just before the surgery. 2, The interim splint is engaged during the bonecut of the maxilla. 3, After suture it is possible to onfirm the new position of the maxilla. In the comparision of the mentioned two techniques, we know that the External measuring Technique is more trustworthy one.