The growth of young people's knowledge of bone age six asked

1, What is a bone age?

Growth and development of the two available "age" to indicate that the life of age (calendar age) and biological age (bone age). Bone age is the age referred to as bone, bone in the use of X-ray camera to determine the specific image. To understand the child's bone age in the case, it is usually taken to the Department of the left wrist X-rays, X-ray observation Zuoshou Zhang phalanx, radius and ulna broken the lower end of the ossification center of development, to determine bone age.

2, measurement of bone age what is the point?

Human bone changes in the development of similar, each of the bones during development stage and have continuity. Different stages have different patterns of bone characteristics, assessment of bone age to more accurately reflect the individual's level of growth and development and maturity. It is not only to determine the biological age and bone age can also learn at an early stage, as well as the potential for growth and development of a mature trend: the adoption of the child's bone age can predict adult height, bone age determination also a number of endocrine diseases, diagnosis of great help.

3, What are the methods of measuring bone age?

The skeletal age determination methods are simple counting, the map of France, scoring and computer scoring system, such as bone age, is the most commonly used GP map and TW2 (TW3) score; prediction of adult height, including BP Act, RWT law, TW2 law.

4, abnormal bone age What are the diseases?

Biological age (bone age) - living in the age difference of less than ± 1-year-old known as the normal development.

Biological age (bone age) - The life of the age difference> 1-year-old known as the early development (referred to as: precocious).

Biological age (bone age) - The life of the age difference <1-year-old known as the development of backward (referred to as: late-maturing).

The abnormal bone age, certain endocrine diseases are often the one aspect of performance. Many diseases will have an impact on bone development, or ahead of schedule or behind, such as adrenal hyperplasia or tumor, Alreb-ert syndrome, precocious puberty, hyperthyroidism, ovarian granulosa cell tumor of bone age, and so will lead to the early; and ovarian hypoplasia (Turner syndrome), and achondroplasia, pituitary dwarfism, will result in a lower bone age has clearly failed.

5, why the test can predict adult height and bone age?

Bone age and height have a very close correlation between the age of adult height and height with a high degree of relevance, therefore, in the light of current bone age, you can also probably predict how long. Forecast for the importation of the current height and bone age, the girls still have to enter an official holiday. And then a different prediction formula adult height.

In several bone age is forecast methods, comparison, TW2 better accuracy of the law.

Have to say is: There are many factors that affect height, both with the kind of prediction methods, the formula can not predict all the factors are taken into account, and in each forecast, the forecast target of nutrition, disease, environmental and many other Unpredictable factors, although these methods predict a certain height, but the scientific basis for forecasting error is always inevitable. However, the results of the forecast trend is reflected in the wrong.

6, sub-dwarf children what reasons?

First, the children belong to the physical nature of short stature, bone age and the age of life, this is considered normal development;

Second, the child's bone age is less than the age of life, and this is the child's growth and development of unusual, and unusually for this reason there are many. Determine the reason for the symptomatic treatment can be. With short stature is the main performance of the small primary disease, familial short stature syndrome, intrauterine growth retardation and physical stunting and adolescent patients, clinical identification, it will be difficult to determine bone age to predict adult height combined with a history of help Diagnosis; small primary disease, familial short stature syndrome and normal bone age, height and age predict a lower value, but the family of hereditary disease in children with short stature predicted adult height in the framework of a high degree of genetic; intrauterine growth retardation low bone age, Adult height is also low, the combination of history, can be diagnosed early childhood, adolescence and physical stunting disorder behind bone age, bone age and height are basically the same age, predicted adult height is not low.