Jaw fractures in Enugu, Nigeria, 1985-95.

A retrospective analysis of 900 patients with jaw fractures of the facial bones during the period January 1985 - December 1995 indicated that 747(83%) resulted from road traffic accidents, 75(8.4%) from interpersonal violence, 39(4.3%) from accidents during sporting events, and 36(4%) from occupational accidents, while the causes of 3(0.3%) were not stated. The left side of the face was affected more often than the right. The mandible was twice as likely to be fractured as the zygomaticomaxillary complex. The symphysis-body-angle and the condylar region were the most common sites of fracture of the mandible, while the zygoma was the area most often affected in the middle third of the face. Most maxillofacial fractures occurred in the age group 21-30 years, and the lowest among those over 60. Three times as many men were affected as women. We conclude that there is high incidence of fractures of the facial bones caused by traffic accidents in our environment and, in all age groups, men were more likely to be affected than women.