Left calcaneus, medial surface. (Sustentaculum tali labeled at center top.)
Bones of the right foot. Dorsal surface.
|Anatomical terms of bone|
At the upper and forepart of the medial surface of the calcaneus there is a horizontal eminence, the sustentaculum tali (alternatively, the talar shelf), which gives attachment to the plantar calcaneo-navicular (spring) ligament, tibiocalcaneal ligament, and medial talocalcaneal ligament.
This eminence is concave above, and articulates with the middle calcaneal articular surface of the talus; below, it is grooved for the tendon of the Flexor hallucis longus; its anterior margin gives attachment to the plantar calcaneonavicular ligament, and its medial margin to a part of the deltoid ligament of the ankle-joint.
The sustentaculum is typically involved in subtalar or talocalcaneal tarsal coalition.
- Sustentaculum+tali at eMedicine Dictionary
- Anatomy photo:15:st-0303 at the SUNY Downstate Medical Center - "The Leg: Bones"
- lljoints at The Anatomy Lesson by Wesley Norman (Georgetown University) (medialanklejoint)
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