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目的:观察中国儿童手腕骨发育特征,为应用国外研究成果提供参考。方法:受试者为2005年骨发育调查样本2~18岁的16035名儿童。使用TW3方法评价手腕骨成熟度,与文献中的日本、欧美儿童的数据相比较。结果:中国和日本儿童的手腕骨发育特征相似。在儿童期,中国男儿童TW3-RUS和TW-腕骨成熟度延迟于欧美儿童0.3~0.6岁,女儿童在5~10岁TW3-RUS骨发育与欧美儿童非常接近;但在男12岁、女10岁以后,中国男女儿童TW-RUS骨成熟度加速而分别提前1.1~1.6岁和1.2岁。与欧美儿童相比,中国男儿童在3~10岁、女儿童在2~5岁,TW-腕骨成熟度分别延迟0.3~0.6岁和0.2~0.4岁;在男10岁和女5岁后,中国儿童TW-腕骨成熟度加速而提前,腕骨发育成熟的年龄均提前1.4岁。结论:与1970s~1990s的欧美儿童相比,中国儿童骨发育的延迟已不明显,但是青春期TW3-RUS骨发育加速提前的程度以及腕骨发育成熟年龄的提前则更加显著。
Objective: To observe the characteristics of Chinese children’s wrist bony development and provide reference for the application of foreign research results. METHODS: Subjects were 16,035 children 2 to 18 years of age in the Bone Development Survey 2005 sample. The TW3 method was used to evaluate wrist bone maturity compared with data from Japanese, European and American children in the literature. Results: Chinese and Japanese children had similar features of wrist bones. In childhood, TW3-RUS and TW-carpal bones maturation in Chinese male children were delayed by 0.3-0.6 years in European and American children and that of females aged 5 to 10 years was very close to that in European and American children. However, After the age of 10, Chinese boys and girls TW-RUS bone maturity accelerated, respectively 1.1-1.6 years and 1.2 years in advance. Compared with European and American children, Chinese men and women are between 3 to 10 years old and female children are between 2 to 5 years old. TW- carpal maturity is delayed by 0.3 to 0.6 years and 0.2 to 0.4 years respectively. After male 10 and female 5 years old, Chinese children TW-carpal maturity accelerated in advance, mature carpal age are 1.4 years earlier. CONCLUSION: Compared with the European and American children from 1970s to 1990s, the delayed development of bone development in Chinese children is not obvious. However, the advancement of TW3-RUS bone development in adolescence and the mature age of carpal bones in advance are more significant.