frequency of lower limb injuries and their causes among motorcycle accident admitted into imam hossein hospital during one year

background and aim: motor vehicle accidents are common cause of mortality, morbidity and disability. human factors are principle cause for frequency of motor vehicle accident. in most studies, 52-40% lower limb injuries are trauma from a motorcycle accident. these accidents cause high financial cost and harm for society. materials and methods: in this study, patients with lower limb injuries referred to the hospital trauma ward of imam hussein were evaluated during one year. questionnaire forms were designed and completed for patients then data of these forms was inserted in a database. the information was analyzed by statistical software spss 18. results: from 766 patients with lower limb traumas which were examined and evaluated, 92 % were male and mean age of patients was 25± 12 years. 156 patients suffered from head and neck trauma and 134 persons had skin damage in addition to lower limb trauma. injury to leg was most common injuries in lower leg and tibia shaft fracture was more frequent than lower bone fracture. most injuries in pelvic trauma associated with fractures of the superior pubic ramus and coccyx bone. seventy percent of related knee injuries included injury to patella and tibia plateau. the most observed injuries in ankle and foot were lateral malleolus fracture and lisferanc injuries. about 11 percent of patients were discharged from emergency room after primary management and other patients were admitted in hospital. conclusion: given the high incidence of lower extremity injuries, especially the leg, in the accident of motorcycle riders, procurement and construction of efficient protective equipment, especially protective guard can be effective in reducing accidents. references crawford r. trauma audit: experience in north-east scotland. br j surg 1991; 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