We clinically investigated 299 cases of fresh nasal bone fractures diagnosed using CT scans in our hospital from January 2008 to December 2017. The ages of the patients ranged from 2 to 93 years with an average of 29.4 years. Males and females accounted for 207 and 92, respectively. The causes of the nasal bone fractures were attributed to sports (93 cases), falls (80 cases), blows or injuries (53 cases), violence or fights (40 cases) and traffic accidents (33 cases). Males in their teenage years accounted for the majority of all cases, especially in the sports-related injuries. In these cases, the most common cause was baseball (32 cases), followed by soccer (19 cases), softball (15 cases), basketball (8 cases) and so on. In the cases of traffic accidents, nasal bone fractures were caused by bicycles (18 cases), cars (10 cases), motorcycles (2 cases) and so on. Elderly males and females accounted for high numbers of falls. The external appearance of the nasal bone fractures were divided into 3 types; 171 cases of the displacement type, 96 cases of the depressed type and 32 cases of the mixed type. CT scans revealed nasal septum fractures in 132 cases (44.2%). Complicated facial bone fractures, apart from nasal septum fractures, were found in 35 cases (11.7%, mainly blow-out and maxillary bone fractures). Two hundred and twenty-one cases (73.9%) underwent closed reductions of the nasal bone fracture. Of these 221 cases, 206 cases (93.2%) were treated under general anesthesia and in 131 cases (59.3%), open reduction of the nasal septum fractures was mainly performed. In the cases of nasal bone fractures combined with nasal septum fractures, open reduction of the nasal septum fractures was helpful for the recovery of the nasal obstruction and nasal deformity.
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