What is the difference between growth failure (GF) and short stature?

Updated: Jan 06, 2021
  • Author: Sunil Kumar Sinha, MD; Chief Editor: Robert P Hoffman, MD  more...
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Answer

Growth failure (GF) is often confused with short stature. By definition, GF is a pathologic state of abnormally low growth rate over time, whereas short stature is often a normal variant. Regardless of the genetic background, short stature may be a sign of a wide variety of pathologic conditions or inherited disorders. Thus, accurate longitudinal growth assessment is a fundamental aspect of health maintenance in children. Reviewing the patient's growth chart is critical to evaluating short stature. Deviation from a prior growth pattern appropriate for the genetic background often heralds new pathology. In addition, analysis of the prior growth pattern helps distinguish normal growth from pathologic variants of short stature.

Compared with a well-nourished, genetically relevant population, short stature is defined as a standing height more than 2 standard deviations (SDs) below the mean (or below the 2.5 percentile) for sex. [1] Skeletal maturation is typically determined by the bone age, which is assessed using anteroposterior radiography of the left hand and wrist. Sex-specific reference data for standing height, head circumference, and weight have been published for most developed countries, most ethnic subpopulations (including Asians and blacks), and the most common genetic disorders (eg, Down syndrome, Ullrich-Turner syndrome, achondroplasia).


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