Video summary
Lauge Hansen SA Supination ADduction (Inversion) Ankle Fracture
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Summary
The video explains the supination–adduction (inversion) ankle-fracture pattern and how it may progress in two stages.
- Mechanism: With the foot fixed in a supinated position, an adductory force acts on the lateral side of the ankle, causing the talus to invert within the ankle mortise.
- Stage 1 — Lateral injury: One of the following injuries may occur:
- Rupture of the lateral collateral ligaments
- Avulsion fracture of the lateral malleolus
- Transverse fracture of the distal fibula, below or at the level of the ankle joint
- Stage 2 — Medial injury: If the adductory force continues, the talus abuts the tibia, potentially producing an oblique-to-near-vertical fracture of the medial malleolus.
- Syndesmosis: The video states that the syndesmotic ligaments are not involved in this injury pattern.
- Factors affecting the injury: Its development depends on the foot’s position, the amount of force, and the strength of the ligamentous and bony structures.
Speaker and source
The video metadata credits the narrator as Matrona Giakoumis.
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