Lateral talocalcaneal angle

Last revised by Henry Knipe on 2 Feb 2022

The lateral talocalcaneal angle is one of the angles that can be measured for the assessment of pes planus and pes cavus and assessment of hindfoot deformity.


The lateral talocalcaneal angle is drawn on a weight-bearing lateral foot radiograph. There are two ways that it has been defined 2:

The calcaneal inclination axis is generally more easily measured than the longitudinal axis of the calcaneus. It tends to be steeper and therefore the angle measured against the calcaneal inclination axis will be greater than using the mid-calcaneal axis.


The lateral talocalcaneal angle should normally measure between 25 and 40°:

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