Bilkay U, Gürler T, Bilkay U, Görken C, Kececi Y, Argon M, Akin Y
Department of Plastic Surgery, Ege University Medical School, Izmir, Turkey.
J Craniofac Surg. 1997 Jul;8(4):270-3. doi: 10.1097/00001665-199707000-00008.
The effects of rigid and nonrigid fixation methods in the treatment of long bones have been studied by many authors. A comparison of these two methods has been undertaken on long bones and documented in previous studies. However, there appears to be no such research on facial bone fractures. In this study a mandibular model was selected as an appropriate model for fracture site mobility in the face. Twenty-three patients with mandibular fractures were admitted to the study. Two groups were formed. The first group consisted of intermaxillary fixation patients and the second group was comprised of internal rigid fixation-treated patients. The callus deposit was evaluated by the technetium 99m methylene diphosphonate scintigraphic method on days 1, 10, 20, 30, and 40 postoperatively. The results of the study showed that the greatest level of callus formation is in the second exposure (days 1 to 10) for the first group and in the third exposure (days 10 to 20) for the second group. This study demonstrates that minimal motion on the fracture line after intermaxillary fixation increases local blood circulation and osteoblastic activity. The callus deposit reaches maximum in a short period of time with nonrigid fixation.
许多作者研究了刚性和非刚性固定方法在长骨治疗中的效果。此前的研究已对这两种方法在长骨上进行了比较并记录在案。然而，对于面部骨折似乎尚无此类研究。在本研究中，选择下颌骨模型作为面部骨折部位活动度的合适模型。23例下颌骨骨折患者纳入研究。分为两组。第一组为颌间固定患者，第二组为接受内固定治疗的患者。术后第1、10、20、30和40天采用锝99m亚甲基二膦酸盐闪烁扫描法评估骨痂沉积情况。研究结果表明，第一组在第二次扫描（第1至10天）时骨痂形成水平最高，第二组在第三次扫描（第10至20天）时骨痂形成水平最高。本研究表明，颌间固定后骨折线上的微小运动可增加局部血液循环和成骨细胞活性。非刚性固定时骨痂沉积在短时间内达到最大值。
