3 facets
1. Posterior facet (STJ)
2. Middle facet (sustenaculum tali)
3. Anterior facet (on distal medial aspect)
Anterior process
- forms calcaneocuboid (CCJ) articulation
Thalamic portion
- under lateral process talus
Tuberosities
Posterior tuberosity
- posterior process / T Achilles attachment
Dorsal
- most common
Volar
1. Acute traumatic peripheral tear TFCC with DRUJ dislocation
- usually major trauma
- dorsal or volar
2A. Distal radial fracture
FOOSH
- axial load with a valgus force
1. Provides Valgus stability
- especially if MCL deficient
2. Longitudinal stability
- aided by interosseous membrane
3. Load Transfer
- 60% of load at elbow