The lateral process of the talus is a wedge-shaped projection from the lateral side of the talar body. Its upper surface carries part of the facet for the lateral malleolus, and its lower surface forms part of the posterior facet of the subtalar joint. The lateral talocalcaneal ligament attaches to its tip.
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| Ossification | Part of the talus, which ossifies from a single primary centre at about the sixth to seventh fetal month. |
Fracture of the lateral process, known as snowboarder's fracture, results from dorsiflexion and eversion or inversion of the ankle. It is commonly mistaken for an ankle sprain because it is hard to see on standard radiographs, and CT is often needed. Missed displaced fractures can lead to subtalar arthritis.
A fracture of the lateral process from forced dorsiflexion with eversion or inversion, mimicking a lateral ankle sprain and needing CT for diagnosis.
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