Moshy Jeremiah Robert, Msemakweli Beatus Stanslaus, Owibingire Sira Stanslaus, Sohal Karpal Singh
Department of oral and maxillofacial surgery, Muhimbili University of Health and Allied Sciences. Dar es Salaam, Tanzania.
Department of dental services, Mount Meru Regional Referral Hospital. Arusha, Tanzania.
Afr Health Sci. 2020 Jun;20(2):789-797. doi: 10.4314/ahs.v20i2.32.
The maxillofacial structures are commonly affected in motorcycle crashes, with the mandible being one of the most frequently fractured bones. Helmets have been shown to have a protective effect in preventing maxillofacial injuries, however, its effect on the occurrence of mandibular fractures is not very well established.
To evaluate the pattern of mandibular fractures among motorcycle crash victims in Tanzania, and determine the role of helmets in occurrence of mandibular fractures among the motorcyclists.
This was a 6-months prospective, cross-sectional study that recruited motorcycle crash victims who reported with mandibular fractures following motorcycle crash at Muhimbili National Hospital. A specially designed questionnaire was used for data collection. For purpose of analysis, the Statistical Package for Social Sciences software version 20 was used.
The study included a total of 132 participants of whom majority were male (120, 90.9%). The peak age incidence was 21-40 years in 76.5% of the victims. More than half (89, 67.4%) of the victims were riders during the crash. Helmet use was reported in 42.3% of the victims, and majority (67.3%) were usinghalf-face helmets. The symphysis region was the frequently fractured anatomical location (50, 37.9%). More than half of the victims had multiple site involvement, with higher odds observed in individuals wearing half-face helmets.
Young males were affected ten times more than females. Most of the victims were riders during the crash. The symphysis region was the frequently fractured anatomical site. There was no difference in occurrence of mandibular fractures between those who wore and those who did not wear helmets during the crashes. However, the severity of mandibular fractures was dependent on the type of helmet used.
颌面结构在摩托车事故中常受影响，下颌骨是最常发生骨折的骨头之一。头盔已被证明在预防颌面损伤方面具有保护作用，然而，其对下颌骨骨折发生的影响尚未完全明确。
评估坦桑尼亚摩托车事故受害者下颌骨骨折的模式，并确定头盔在摩托车骑行者下颌骨骨折发生中的作用。
这是一项为期6个月的前瞻性横断面研究，招募在穆希姆比利国家医院因摩托车事故导致下颌骨骨折前来就诊的受害者。使用专门设计的问卷进行数据收集。为进行分析，使用了社会科学统计软件包第20版。
该研究共纳入132名参与者，其中大多数为男性（120名，占90.9%）。受害者的年龄高峰发病率在21至40岁，占76.5%。超过一半（89名，占67.4%）的受害者在事故发生时是骑手。42.3%的受害者报告使用了头盔，其中大多数（67.3%）使用的是半脸头盔。联合部区域是最常发生骨折的解剖部位（50例，占37.9%）。超过一半的受害者有多个部位受累，佩戴半脸头盔的个体发生骨折的几率更高。
年轻男性受影响的几率是女性的10倍。大多数受害者在事故发生时是骑手。联合部区域是最常发生骨折的解剖部位。在事故发生时，佩戴头盔和未佩戴头盔的人在下颌骨骨折的发生率上没有差异。然而，下颌骨骨折的严重程度取决于所使用的头盔类型。
