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目的定量给出手腕部各骨骨化指标出现时的骨龄值。方法通过对443名健康儿童的手腕骨X线片进行测量,得出骨龄值。观察各骨骨化指标出现时的骨龄。结果 347人发育正常(78.33%);第三中节指骨的骨干与骨骺等宽是进入加速期的第一个标志,此时男性的平均骨龄为11.74岁,女性9.91岁;拇指尺侧籽骨出现,表示进入高峰期前期,男性13.39岁,女性11.52岁;第三中节指骨骨骺呈帽状和第一近节指骨骨骺呈帽状,男性14.13～14.19岁,女性为12.44～12.53岁,提示进入儿童生长发育的高潮;第三近、中、远节指骨的骨骺与骨干开始融合,儿童进入生长发育减速期,女性13.46岁,男性15岁之后。结论此结果可帮助医生快速了解患儿的发育状况以指导矫治方案的制定。
Objective To quantitatively give the value of skeletal age at the time of each ossification index of the wrist. Methods The skeletal age was obtained by measuring the wrist radiographs of 443 healthy children. Observation of bone ossification index appears when the bone age. Results 347 normal development (78.33%); the third section of the phalanx of the backbone and epiphyseal width is the first sign of entry into the acceleration period, the average age of the men were 11.74 years old, 9.91 years old female; thumb ulnar sesamoid Appeared, said entering the peak period, the male 13.39 years old, female 11.52 years; the third section of the phalanx epiphysis were capped and the first proximal phalanx epiphysis hat, male 14.13 ~ 14.19 years old, female 12.44 ~ 12.53 years old, suggesting Into the climax of children’s growth and development; third, middle and distal phalangeal phalanx and the backbone began to merge, children entered the growth and deceleration period, female 13.46 years old, men 15 years of age. Conclusion The results can help doctors quickly understand the development of children to guide the development of orthodontic treatment programs.