bone age

Học thuật
Thân thiện
bone age

A doctor examines an x-ray to determine a child's bone age.

Definition

Noun: - A person's age measured by matching their bone development (as shown by X-rays) with bone development of an average person of known chronological age: This is a medical assessment used primarily in pediatrics and endocrinology to evaluate a child's physical maturation and growth potential by examining the degree of ossification in specific bones, typically via a hand and wrist X-ray.

Usage
  • Bone age is a standard measurement in assessing growth disorders. It is compared to the child's chronological age to determine if skeletal maturation is advanced, delayed, or appropriate.
  • It is used to predict adult height, diagnose hormonal conditions, and guide treatment decisions.
Examples
  • The pediatrician ordered an X-ray to determine the child's bone age because her growth seemed unusually slow.
  • His bone age was two years behind his chronological age, indicating a possible growth hormone deficiency.
  • The bone age assessment confirmed that she was experiencing early puberty.
Advanced Usage
  • "Bone age advancement": A condition where the bone age is significantly older than the chronological age, often associated with precocious puberty or certain endocrine disorders.
    • The bone age advancement of 18 months prompted further endocrine testing.
  • "Bone age delay": A condition where the bone age is younger than the chronological age, which can be seen in growth hormone deficiency, hypothyroidism, or chronic illness.
    • The consistent bone age delay was a key finding in diagnosing the syndrome.
Variants and Related Words
  • Skeletal age: A direct synonym for bone age.
  • Bone maturation: The process that bone age seeks to measure.
  • Greulich-Pyle method: A common standardized technique for assessing bone age by comparing an X-ray to a reference atlas.
  • Tanner-Whitehouse method: Another systematic method for scoring bone age.
Synonyms
  • Skeletal age
  • Radiographic age
Notes
  • Bone age is a clinical estimate, not an exact measurement. Different assessment methods can yield slightly different results.
  • The concept is only applicable for children and adolescents, as skeletal maturation is complete in adults.
bone age

A doctor examines an x-ray to determine a child's bone age.

Noun
  1. a person's age measured by matching their bone development (as shown by X rays) with bone development of an average person of known chronological age