Bone age
Bone Age
Bone age (pronounced: /boʊn eɪdʒ/) is a term used in pediatrics and radiology to describe the degree of maturation of a child's bones. This measurement is used to identify potential growth issues and to predict the child's adult height.
Etymology
The term "bone age" is derived from the English words "bone" and "age". "Bone" comes from the Old English bān, meaning "the hard, solid, calcified tissue forming the skeleton of vertebrates". "Age" comes from the Old French aage, meaning "the length of existence from the beginning to any given time".
Definition
Bone age is determined by comparing the maturity of the child's bones to bone development standards. The most commonly used standard is the Greulich and Pyle method, which involves comparing a left hand and wrist X-ray to a standard set of images of children of different ages.
Related Terms
- Growth Plate: The area of growing tissue near the ends of the long bones in children and adolescents.
- Epiphysis: The end part of a long bone, initially growing separately from the shaft.
- Radiograph: An image produced on a sensitive plate or film by X-rays, gamma rays, or similar radiation, and typically used in medical examination.
See Also
External links
- Medical encyclopedia article on Bone age
- Wikipedia's article - Bone age
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