BACKGROUND: To evaluate the diagnostic accuracy of clinical signs combined with the tongue blade test(TBT) to detect maxillary and mandibular fractures.METHODS: A cross-sectional study enrolled patients with maxillary...BACKGROUND: To evaluate the diagnostic accuracy of clinical signs combined with the tongue blade test(TBT) to detect maxillary and mandibular fractures.METHODS: A cross-sectional study enrolled patients with maxillary and mandibular injuries in the emergency department. Physical examination and the TBT were performed, followed by radiological imaging(facial X-ray or computed tomography [CT]). The diagnostic accuracy was calculated for individuals and a combination of clinical findings at predicting maxillary and mandibular fractures.RESULTS: A total of 98 patients were identified, of whom 31.6% had maxillary fractures and9.2% had mandibular fractures. The combination of malocclusion, tenderness on palpation and swelling with positive TBT had 100% specificity to detect maxillary and mandibular fractures. In the absence of malocclusion, the combination of tenderness on palpation and swelling with positive TBT produced a specificity of 97.8% for maxillary fracture and a specificity of 96.2% for mandibular fracture. A clinical decision tool consisting of malocclusion, tenderness on palpation, swelling and TBT revealed a specificity of 100% and a positive predictive value of 100%.CONCLUSION: The clinical decision tool is potentially useful to rule out mandibular fractures,thus preventing unnecessary radiation exposure.展开更多
目的:利用超声骨刀切开、钛板/钛网固定,采用正颌外科手段治疗12例伴错位愈合的上颌骨陈旧性骨折,评价其临床效果。方法:对12例上颌骨陈旧性骨折患者,采用Le Fort I型截骨术进行治疗。术中应用意大利Mectron的超声骨刀代替摇摆据进行切...目的:利用超声骨刀切开、钛板/钛网固定,采用正颌外科手段治疗12例伴错位愈合的上颌骨陈旧性骨折,评价其临床效果。方法:对12例上颌骨陈旧性骨折患者,采用Le Fort I型截骨术进行治疗。术中应用意大利Mectron的超声骨刀代替摇摆据进行切开,微型钛板/钛网固定,随访6～12个月,评价术后功能和美观效果。结果:利用超声骨刀切骨,切割高度精确,并且上颌骨没有发生任何振动损伤。手术所需时间比常规钻所用时间稍长。骨愈合良好,无任何神经血管异常。伤口一期愈合,咬合关系及外观满意或基本满意。结论:超声骨刀可用于颌骨陈旧性骨折的切开,精确度高,损伤小。展开更多
文摘BACKGROUND: To evaluate the diagnostic accuracy of clinical signs combined with the tongue blade test(TBT) to detect maxillary and mandibular fractures.METHODS: A cross-sectional study enrolled patients with maxillary and mandibular injuries in the emergency department. Physical examination and the TBT were performed, followed by radiological imaging(facial X-ray or computed tomography [CT]). The diagnostic accuracy was calculated for individuals and a combination of clinical findings at predicting maxillary and mandibular fractures.RESULTS: A total of 98 patients were identified, of whom 31.6% had maxillary fractures and9.2% had mandibular fractures. The combination of malocclusion, tenderness on palpation and swelling with positive TBT had 100% specificity to detect maxillary and mandibular fractures. In the absence of malocclusion, the combination of tenderness on palpation and swelling with positive TBT produced a specificity of 97.8% for maxillary fracture and a specificity of 96.2% for mandibular fracture. A clinical decision tool consisting of malocclusion, tenderness on palpation, swelling and TBT revealed a specificity of 100% and a positive predictive value of 100%.CONCLUSION: The clinical decision tool is potentially useful to rule out mandibular fractures,thus preventing unnecessary radiation exposure.
文摘目的:利用超声骨刀切开、钛板/钛网固定,采用正颌外科手段治疗12例伴错位愈合的上颌骨陈旧性骨折,评价其临床效果。方法:对12例上颌骨陈旧性骨折患者,采用Le Fort I型截骨术进行治疗。术中应用意大利Mectron的超声骨刀代替摇摆据进行切开,微型钛板/钛网固定,随访6～12个月,评价术后功能和美观效果。结果:利用超声骨刀切骨,切割高度精确,并且上颌骨没有发生任何振动损伤。手术所需时间比常规钻所用时间稍长。骨愈合良好,无任何神经血管异常。伤口一期愈合,咬合关系及外观满意或基本满意。结论:超声骨刀可用于颌骨陈旧性骨折的切开,精确度高,损伤小。
