The bone age of a child is often measured by taking an orthopantomogram of the left wrist joint, and can also be accurately calculated by cross-referencing to an atlas.
Bone age of children is often measured by taking an orthopantomogram of the left wrist joint, by observing the number of ossification centers of the phalanges, metacarpals, and the lower end of the ulnar radius of the left wrist joint, which is calculated by the method that bone age equals to the number of ossification centers minus 1. However, there are only a maximum of 10 pieces of ossification centers, and thus it is applicable only to children of 9~10 years old. In addition, accurate calculations can be made against the chart.
If the child’s bone age is obviously advanced, it is necessary to exclude the possibility of precocious puberty, improve the relevant examination, and if necessary, do the sex hormone stimulation test; if the bone age is obviously lower than normal, it is necessary to exclude the developmental delay and other diseases.
If the bone age value is abnormal, you need to go to the hospital in time and follow the doctor’s instructions for better treatment of the disease.