The Clinical Guide topics:


Rearfoot: Varus Intrinsic

Varus intrinsic of frame rearfoot post

Stabilizes everting rearfoot
Inversion of heel at heel strike
Increases orthotic reaction force medial to STJ

Clinical Indication:
Overpronation of subtalar joint
Dress and low volume shoe gear


A varus intrinsic rearfoot posting is a leveled, flat surface on the inferior heel cup area of a device’s frame. This modification increases the contact area of the device. An angulation can also be ground into the inferior frame’s rearfoot to achieve a varus rearfoot posting. The distal medial edge of the orthotic frame will elevate matching angulation of the rearfoot posting angle.

The angle of the weight-bearing achilles insertion bisection line relative to the normal force vector line can be used as an indication to determine the adequate degree of rearfoot posting to achieve equilibrium around the adjacent lower extremity structures during ambulation.

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