Classification based on position of foot + force direction. Common: Supination-External Rotation (SER), Supination-Adduction (SA), Pronation-Abduction (PA), Pronation-External Rotation (PER). Each mechanism has progressive stages of injury (ligament/osseous). Guides mechanism-based diagnosis and fixation strategy. Supination-External Rotation = most common ankle injury.
Which of the following is the most common mechanism of ankle fracture according to the Lauge-Hansen classification?
What is the first stage of injury in a Supination-External Rotation ankle fracture?
Which radiographic view is essential to assess the integrity of the ankle mortise?
In the Lauge-Hansen classification, what does the term 'supination' refer to?
What is the typical treatment for a stable ankle fracture without significant displacement?
Which ligament is primarily affected in a Supination-Adduction ankle injury?
What type of fracture is associated with the fourth stage of injury in a Supination-External Rotation mechanism?
How is a Pronation-External Rotation (PER) injury characterized?
In assessing an ankle fracture, which clinical feature is most indicative of a syndesmotic injury?
What is the primary goal of treatment for an unstable ankle fracture?
