Quantitation of digital clubbing by shadowgram technique

Arch Dis Child. 1979 Feb;54(2):145-6. doi: 10.1136/adc.54.2.145.


Finger clubbing was quantified from the magnified silhouette of the right index finger in controls and patients with clubbing, using a simple shadowgram technique. There was good correlation between clinical assessment and measurement of both the profile angle and the hyponychial angle. The hyponychial angle appeared to be a more accurate indicator of clubbing than the profile angle.

MeSH terms

  • Child
  • Child, Preschool
  • Female
  • Humans
  • Infant
  • Male
  • Methods
  • Osteoarthropathy, Secondary Hypertrophic / diagnosis*