北京0～2月婴儿骨骼强度的测定及其影响因素的探讨

Determination of bone strength of 0～2 months old healthy infants in Beijing and its influencing factors

目的测定北京地区婴儿超声波沿骨骼长轴的传播速度(SOS),定量地监测骨骼强度。方法应用以色列Sunlight公司提供的仪器测定了北京儿童的SOS,共检测365例0～2m的北京地区健康婴儿(女212例;男153侧)。填写问卷,测定身高(长)、体重,并采用标准方法测定婴儿胫骨中段的SOS值;以Sunlight系统内提供的SOS值为参照标准。结果(1)得出0～2m的北京地区健康婴儿SOS的正常值。(2)北京地区0～2m健康婴儿SOS值与系统提供的SOS值的比较有明显差异。(3)不同季节测定的婴儿骨骼SOS结果之间有差异。结论不同地区、不同季节的婴儿骨骼SOS测量结果不同,应建立相应的正常值标准。

Objective Using a quantitative ultrasound system to assessment the bone strength of 0 - 2 months old infants in Beijing. Methods Three hundreds and sixty five Beijing 0 - 2 months old healthy infants were examined. The height and weight of every infant was measured, The speed of sound （SOS） was measured at the midshaft tibia. The reference curves by gender was obtained from the Sunlight System（ Sunlight company） . Results The nomal range of the SOS at midshaft tibia for 0 - 2 months old healthy infants was in Beijing was obtained, Significant difference was shown between the SOS obtained and the SOS provided by the Sunlight System. The SOS results varied among different seasons, Conclusions The bone SOS value of infants varies in different areas and different seasons, thus the normal range of SOS should be individulized.