- Medial tubercle of posterior talar process
- Mechanism: Ankle dorsiflexion with pronation
- Lateral tubercle of posterior talar process
- Mechanism: Plantar flexion or forced inversion
- Medial tubercle Fracture
- Tenderness to palpation posterior to medial malleolus
- Lateral tubercle Fracture
- Tenderness anterior to achilles tendon at lateral ankle
- Provocative maneuvers: Plantar flexion
- Lateral tubercle: Lateral XRay
- Note that accessory ossicle is normal variant
- Medial tubercle: Oblique Ankle XRay
- Hold foot in 40 degrees external rotation
- Non-weight bearing Short Leg Cast for 4 to 6 weeks
- Indicated for small, non-displaced Fractures
- Surgical repair
- Large or displaced Fractures