Talonavicular coverage angle

Last revised by Henry Knipe on 2 Feb 2022

The talonavicular coverage angle reflects the degree of, if any, talar uncoverage, which is important in the surgical work-up of flatfoot disease 3


On DP weight-bearing foot radiographs, it is the mediale angle between 1-3:

  • talar head articular surface
  • proximal navicular articular surface


Interpreting the talonavicular coverage angle 1:

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