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本文通过对世居青藏高原(海拔3000～4000m)藏族和汉族7～18岁健康学生1460人手腕部X光片的分析,研究两民族在高原环境下骨发育的规律和异同。本文资料表明:高原藏族青少年手和腕部骨的发育,骨化中心出现顺序及长骨干骺愈合顺序均与汉族青少年相同,在时间上一般提前于汉族1～2年。籽骨的出现或手末节指骨的干骺愈合,两族基本一致,可作为预测月经初潮的指标。本文讨论了其差异的原因。
This article analyzes the rules and similarities and differences of the bone development of two ethnic groups in the plateau environment by analyzing the X-ray images of the wrist of 1,460 healthy students from Tibetan Plateau (3000 ~ 4000m above sea level) and Han nationality from 7 to 18 years old. The data in this paper indicate that the order of development of bone and epididymal bone in the hands and wrists of Tibetan adolescents is the same as that of Han adolescents in Han nationality, which is generally 1 to 2 years ahead of the Han nationality in time. The appearance of sesamoid or the epiphyseal healing of the phalanges of phalanges of the hand, the two groups are basically the same, can be used as an index to predict menarche. This article discusses the reasons for the difference.