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目的:了解髋关节外展锻炼对发育性髋关节发育不良(DDH)可疑婴儿干预效果,探讨外展锻炼对DDH可疑婴儿的恢复是否有效,进而进一步推广以降低整体人群DDH发病率和致残率。方法:选取天津市DDH筛查中的可疑婴儿,分为外展锻炼组和非外展锻炼组,1个月后两组均复查超声,分析恢复效果。结果:外展锻炼组转为正常婴儿的百分率显著高于非外展锻炼组,外展锻炼组转为异常婴儿的百分率显著低于非外展锻炼组。对比两次超声α角的变化,外展锻炼组α角转为好转型的百分率要显著高于非外展锻炼组,α角无变化型的百分率要显著低于非外展锻炼组。对比两次超声β角的变化,外展锻炼组β角转为好转型的百分率高于非外展锻炼组,β角无变化型的百分率低于非外展锻炼组。结论:外展锻炼对DDH可疑婴儿的恢复有促进作用,但操作中有诸多注意事项。
OBJECTIVE: To understand the effect of hip abduction exercise on suspicious infant with developmental hip dysplasia (DDH), and to explore whether the effect of outreach exercise on DDH suspicious infant recovery is effective and then to further promote DDH morbidity and disability rate in the general population . Methods: Suspected infants in DDH screening in Tianjin were divided into two groups: abduction training group and non-abduction training group. Ultrasound was performed in both groups after 1 month, and the recovery effect was analyzed. Results: The percentage of infants who were converted to normal infants in abduction training group was significantly higher than that of non-abduction training group. The percentage of infants who were converted to abnormal infants in abduction training group was significantly lower than that in non-abduction training group. Comparing the change of α-angle of ultrasound twice, the percentage of α-angle to good transition in abduction group was significantly higher than that of non-abduction group, and the percentage of α-angle unchanged was significantly lower than that of non-abduction group. Comparing the change of β-angle of ultrasound twice, the percentage of β-angle to good transition in abduction group was higher than that in non-abduction group, and the percentage of β-angle unchanged was lower than that of non-abduction group. Conclusion: Outreach exercise can promote the recovery of DDH suspicious infants, but there are many precautions in the operation.