The Assessment of Intermaxillary Fixation and Open Reduction Using Skeletal Anchorage System Compared With Arch Bar in Mandible Fracture Based on CT Image

Abstract

Background: There are many different techniques to achieve intermaxillary fixation (IMF) for open reduction of mandible fractures. The arch bar has long been used as the gold standard of IMF to assist open reduction. However, owing to its long operating time, risk of needle stick injury, and gingival trauma, surgeons looked into different treatment options for IMF, such as the skeletal anchorage system (SAS). Therefore, this study aimed to compare the stability between IMF with arch bar and IMF with SAS based on computed tomography image.

Materials and methods: In this retrospective study, postoperative computed tomography and panoramic radiographs were taken 1 week and 6 months after surgery, respectively. The treatment of mandibular fractures using IMF with arch bar and SAS were compared by evaluating changes in the dental midlines and condyle positions. Thirty patients with mandibular fractures were enrolled into 2 groups-IMF with arch bar and IMF with SAS.

Results: The arch bar showed slightly more deviation in dental midline. In SAS, the condyle moved more medially compared with the arch bar.

Conclusions: Skeletal anchorage system could be used for IMF with reliable stability in mandible fracture. There were no significant differences in the treatment outcome between the 2 groups.