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Sustentaculum Talus Fracture

- Discussion:
     - fractures of the sustentaculum tali result from landing on the heel combined with severe inversion of the foot;
     - inversion of foot produces acute pain just below the medial malleolus;
     - pain may be accentuated by passive hyperextension of the great toe;
     - this fracture may be mistaken for an ankle fracture;
- Radiographs:
     - axial x-ray:- demonstrates the fracture;
- Treatment:
     - six weeks of plaster immobilization