A clinicostatistical analysis of mandibular fractures in the west of gyeongsangnamdo

Joo, Hyun Ho; Weon, Dong Whan; Lee, Sang Hwy; Kim, Il Hyun

Abstract

This is a clinicostatistical study of 578 patients with mandibular fractures who was treated at Gyeongsang National University Hospital during the period of 1988-1999.
Results
obtained were as follows: 1. In respect of incidence, The ratio of men to women was 5.0 : 1, The age frequency was the highest in the third decade(37.5%), The youngest patient was 3 years and the eldest patient was 87 years and mean age was 29.9 years, The year incidence was the highest frequency as 83 patients in 1998. The monthly incidence was the highest frequency as 66 patients in July and the least frequency as 34 patients in December. 2. The most frequent cause was traffic accident as 198 patients(41.7%) and the next was fall down 161 patients(27.9%), violence as 112 patients(19.4%) in order. 3. The incidence of associated soft tissue and tooth injury was 62.6%, and concomitant injuries of other parts of body(26.5%) were most commonly caused by traffic accident(79.7%). 4. The most common location was symphysis as 361 number(40.9) and the sum of fracture sites were 925 and there were 1.6 fracture sites per one patient. The most common type of mandible fractures was closed simple type(82.9%) and the ratio of Left to Right except for symphysis was 1.5 : 1. 5. In respcet of treatment, the frequency of open reduction was 423 patients(73.2%) and the incidence of complication was 7.4% and the most common complication was infection.