Objective To analyze the application of ultrasonic examination in the diagnosis of dysplasia of hip joint in children,so as to provide reference for clinical practice. Methods A total of 360 children with screening result of hip joint dysplasia were selected in Yiling Maternal and Child Health Hospital from January to December 2018,and took further X-ray examination and ultrasonic examination.The final clinical diagnosis and follow-up for 6 months in all children were used as the gold standard for comparison. Results Finally 29 (8.1%) of 360 infants were diagnosed with hip dysplasia.The diagnostic accuracy ratios of X-ray examination and ultrasonic examination were 98.6% (355/360) and 99.4% (358/360).The diagnostic sensitivity and specificity of the X-ray group were 99.7% and 99.1%,respectively.The diagnostic sensitivity and specificity of ultrasonic examination group were 96.5% and 91.9%,respectively.The diagnostic sensitivity and specificity of ultrasonic examination were slightly higher than that of X-ray examination,but there were no significant differences (P>0.05).Among 360 infants,331 (91.9%) were of type I (normal hip joint),and 22(75.9%) infants were detected with type Ⅱ (immature) hip physiological development,of whom 15 infants changed to type I (normal hip),2 infants had no change,and 5 infants lost during the follow-up. Conclusions X-ray and ultrasonic examination can diagnose hip dysplasia accurately.Compared with X-ray examination,ultrasonic examination can effectively reduce or avoid excessive exposure to X-ray radiation in the process of examination,which is of higher clinical promotion value.
Key words
hip dysplasia /
ultrasonic examination /
X-ray examination /
children
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