A Clinical and Statistical Study on Maxillofacial Fractures.

악안면골(顎顔面骨) 골절환자(骨折患者)의 임상(臨床) 통계적(統計的) 연구(硏究)

This is a retrospective study on maxillofacial fractures. This study was based on a series of 442 patients with maxillofacial fractures treated at Dept, of oral and Maxillofacial Surgery, College of Dentistry, Chon Buk National University from Jan, 1984 to Sep. 1988. The results obtained were as follows: 1. The ratio of Male/Female was 4.8 : 1, and 3rd decade (43.9%) was the highest age group in incidence. 2. Monthly incidence was the highest in Oct,(10.6%). 3. The most frequent maxillofacial fracture site was mandible (70.0%), and zygoma & zygomatic arch (13.6%), maxilla(11.7%) and nasal bone (4.7%) were next in order of frequency. 4. Traffic accidents (47.5%), fight(24.8%) were the most common causes of maxillofacial fractures. 5. The most frequent chief complaint was painful swelling(40.7%). 6. In mandibular fractures, the most frequent fracture site was symphyseal area(28.9%) and simple fracture was the most frequent in type of fracture (71.2%). 7. In maxillary fractures, fracture with other facial bones (64.5%) was more frequent than fracture of maxilla only. The most common type of fracture was unilateral fractures(37.1%). 8. In fracture of zygoma complex, zygoma fracture was the most frequent fracture type(40.3%), zygoma and zygomatic arch fx, (30.6%), zygomatic arch fx, (29.1%) were next in order 9. Open reduction was major method of treatment in maxillofacial fractures : Mandible (77.5%), Maxilla (61.3%), Zygoma complex(43.1%). 10. Maxillofacial fractures were most frequently combined with head injury(39.3%), and lower extremities(17.0%), upper extremities(13.6%) were next in order.