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骨骼测定年龄(age determination by skeleton)简称骨龄(skeletal age,SA),是指儿童青少年骨骼发育水平同骨发育标准比较而求得的发育年龄。影响骨骼发育最重要的因素是下丘脑-垂体-性腺轴系统,包括垂体、甲状腺、肾上腺皮质及性腺等内分泌腺分泌的激素对骨骼发育起调节和控制作用,其中性激素在青春期骨骼发育中起主导作用。 骨龄测定及成年身高预测的方法 一、骨龄测定 摄左手腕正位X光平片,分析骨骺的数量、大小及形状,估计其发育水平。包括计数法、图谱法、评分法和计算机辅助骨龄分析,最常用的是TW_2评分法和
Skeletal age (age determination by skeleton) Abbreviation skeletal age (SA), refers to the age of development of children and adolescents compared with the bone development level of bone development and developmental age. The most important factor affecting bone development is the hypothalamic-pituitary-gonadal axis system, which includes hormones secreted by the endocrine glands such as the pituitary gland, the thyroid gland, the adrenal cortex and the gonads, which regulate and control bone development, with sex hormones predominant in adolescent skeletal development effect. Bone age determination and adult height prediction method One, bone age determination taken left wrist X-ray plain film, the number of epiphyses, size and shape, estimated its level of development. Including counting, mapping, grading and computer-assisted bone age analysis, the most commonly used is the TW_2 score and