Sustentaculum Tali
A focused build-up beneath the sustentaculum tali that supports the talus and reinforces the medial arch at its keystone.
How it works
The sustentaculum tali is the shelf of the calcaneus that props up the talar head, the keystone of the medial arch. This modification builds a focused rise in the shell directly beneath it, supporting the talus where the arch actually hinges rather than spreading force vaguely along the instep.
A few millimeters in exactly the right place can decelerate pronation more comfortably than a taller generic arch, because the support arrives under bone, not under soft tissue.
When to prescribe it
- Talar head collapse in flexible flatfoot
- Posterior tibial tendon dysfunction
- Sinus tarsi syndrome secondary to pronation
- Patients who can't tolerate high arch fills
- Pediatric flexible flatfoot, as a focal alternative
How we build it
We localize the sustentaculum from the scan and your landmarks and raise a subtle, blended dome beneath it. Position and prominence are yours to set, and they hold identically across reorders.