Minimally Invasive Technique for Treatment of Zygomatic Bone Fracture

Abstract

　　Although there are many reduction methods for zygomatic fractures, we performed reduction using a maxillary sinus balloon. Using upper gingivobuccal sulcus incisions, a Foley catheter was inserted into the maxillary sinus from the fractured line and the balloon was expanded. The zygomatic bone was reduced in the anatomical position by stress from the maxillary sinus. The reduction position can be assessed using ultrasonography intraoperatively.
　　The advantages of this method are the avoidance of facial incision, possibility of repositioning the zygomatico-maxillary bone with minimal exposure, reduced vice damage, and shortened surgery time. This method is indicated for type III, IV, and some type VI fractures according to Knight and North, but this method is not indicated if there is large displacement in the frontozygomatic suture. During fixation with absorbable plates after reduction, it is important to pay attention that the fixed portion is accurate in order to prevent postoperative relapse.