Lateral Heel Skive
A ramped lateral wedge in the heel cup that adds a pronation moment to steady an over-supinating, laterally unstable foot.
How it works
The mirror image of the medial skive: a ramped cut on the lateral side of the heel seat that shifts ground reaction force under the calcaneus and adds a pronation moment at the subtalar joint. For the foot that lands inverted and stays there, it actively steers the heel back toward neutral instead of just cushioning the consequences.
Laterally unstable feet often can't tolerate a big lateral wedge under the shell. It feels like walking on a camber. Keeping the correction inside the heel cup gives the same steering effect while the heel stays seated and low in the shoe.
When to prescribe it
- Chronic lateral ankle instability and recurrent inversion sprains
- Rigid or flexible cavus feet that load the lateral column
- Peroneal tendinopathy needing a pronation assist
- A laterally deviated subtalar joint axis
- Habitual supinators with lateral heel callus
How we build it
Set the depth in the Rx and the ramp is machined into the digital heel cup, blended smoothly so there is no edge to feel. Combined with a deep heel cup it keeps the calcaneus centered while nudging it out of inversion.