Function:

• 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

Varus intrinsic of frame rearfoot post

About:
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.

*CLINICAL PEARL
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.

Varus intrinsic of frame rearfoot post