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目的探讨B超检查儿童髋关节脱位的功效和应用范围。方法2005年4月～2006年2月筛查疑似髋关节脱位儿童720例。予以出生史、家族史、其他畸形等危险因素评估,双侧髋关节B超检查。结果13个髋关节Ortolani和Barlow试验检查阳性,占0.9%。5例有家族史的儿童中1例出现髋关节异常。16例儿童至少有一侧异常髋关节超声表现,占2.2%。α角值在8周前后差异有统计学意义(t=5.438,P<0.001)。结论选择性髋关节超声筛查是一种安全、有效的诊断方法,8周以后进行髋关节超声检查的准确率会增高,假阳性率也会逐步减小。
Objective To investigate the efficacy and scope of B-ultrasound in children with hip dislocation. Methods From April 2005 to February 2006, 720 children with suspected hip dislocation were screened. To be born history, family history, other deformities and other risk factors assessment, bilateral hip B-ultrasound. Results Thirteen hip Ortolani and Barlow test positive, accounting for 0.9%. One of 5 children with a family history of hip dysfunction. 16 cases of children with at least one side of abnormal hip ultrasound performance, accounting for 2.2%. There was significant difference in α value before and after 8 weeks (t = 5.438, P <0.001). Conclusion Selective hip ultrasound screening is a safe and effective diagnostic method. After 8 weeks, the accuracy of hip ultrasound examination will increase, and the false positive rate will gradually decrease.