EPIDEMIOLOGY OF SPINE FRACTURES IN MOTORCYCLE ACCIDENT VICTIMS

ABSTRACT Objective: To analyze the incidence of spinal injuries between 2000-2010 due to motorcycle accidents and the relation to the increase in motorcycle sales in the same period, as well as the anatomical distribution of these spinal injuries. Methods: Data were collected from 1,295 records of patients who have suffered spinal injury resulting from motorcycle accidents admitted to the ward TRM (Spinal Cord Trauma) of the Hospital Geral do Estado da Bahia from 2000 to 2010 in this retrospective study. We selected 110 medical records and collected information on sex, age, neurological deficit on admission (according to Frankel scale), diagnosis, and level of injury. Results: Between 2000 and 2010 there was an increase of almost five times in the incidence of patients who have suffered spinal injury due to motorcycle accidents. More than half (51.4%) had cervical spine injury, 37.2% thoracic spine injury and 11.34% had lumbar spine injury. Only 34.3% of patients had no neurological deficit on admission and patients with thoracic spine fracture had a higher incidence and severity of lesion. The average age of patients was 30 years. Conclusions: The increased incidence of spinal injuries due motorcycle accidents occurred in the same period in which there was an increase in motorcycle sales in the country. Patients who have suffered those injuries were young, with higher incidence in the cervical and thoracic spinal levels and high rates of neurological deficit.

摘要
【目的】分析2000-2010年摩托车事故所致脊柱损伤的发病率、同期该国摩托车销量增长与该损伤的关联，以及此类脊柱损伤的解剖分布特征。
【方法】本回顾性研究纳入2000-2010年期间，因摩托车事故致脊柱损伤并收治于巴伊亚州总医院（Hospital Geral do Estado da Bahia）脊髓创伤科（TRM，Spinal Cord Trauma）的1295例患者病历，最终筛选出110份有效病历，收集患者性别、年龄、入院时神经功能缺损情况（依据Frankel量表）、诊断结果及损伤节段等信息。
【结果】2000-2010年间，摩托车事故致脊柱损伤的患者发病率增长近5倍。其中超过半数（51.4%）为颈椎损伤，37.2%为胸椎损伤，11.34%为腰椎损伤。仅34.3%的患者入院时无神经功能缺损；胸椎骨折患者的损伤发生率及病变严重程度均更高。患者平均年龄为30岁。
【结论】该国摩托车事故致脊柱损伤的发病率上升，与同期摩托车销量增长的时间节点高度重合。此类损伤患者多为青壮年，颈椎与胸椎损伤占比更高，且神经功能缺损发生率较高。