Questions and Answers
Using the Lauge-Hansen classification, list the stages of a Pronation-Abduction (PA) ankle injury.
Stage I: Transverse AVULSION fracture of medial malleolus / deltoid ligament rupture, Stage II: AITFL syndesmotic rupture or avulsion of its insertion, Stage III: Short oblique fracture of lateral malleolus / fibula (Weber B).
Using the Lauge-Hansen classification, list the stages of a Pronation External Rotation (PER) ankle injury.
Stage I: Transverse AVULSION fracture of medial malleolus / rupture of deltoid ligament, Stage II: AITFL syndesmotic rupture or avulsion of its insertion (Tillaux-Chaput fracture), Stage III: Oblique or spiral fibular fracture above the joint (Weber C / Maisonneuve Fracture), Stage IV: PITFL syndesmotic rupture or avulsion of posterior lateral malleolus (Volkmann's fracture).
Using the Lauge-Hansen classification, list the stages of a Supination Adduction (SA) ankle injury.
Stage I: Rupture of Lateral collateral ligaments, avulsion fracture of the lateral malleolus, transverse fracture of distal fibula below level of ankle joint (Weber A), Stage II: Oblique/Near VERTICAL fracture of medial malleolus.
What is the most common mechanism of fracture when dealing with the Lauge-Hansen classification?
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Using the Lauge-Hansen classification, list the stages of a Supination External Rotation (SER) ankle injury.
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Study Notes
Pronation-Abduction (PA) Ankle Injury
- Stage I: Transverse avulsion fracture of the medial malleolus; associated with deltoid ligament rupture.
- Stage II: Anterior inferior tibiofibular ligament (AITFL) syndesmotic rupture or avulsion.
- Stage III: Short oblique fracture of the lateral malleolus (Weber B classification); visible as transverse on lateral radiograph.
Pronation External Rotation (PER) Ankle Injury
- Stage I: Transverse avulsion fracture of the medial malleolus; involves rupture of the deltoid ligament.
- Stage II: AITFL syndesmotic rupture or avulsion, referred to as Tillaux-Chaput fracture.
- Stage III: Oblique or spiral fracture of fibula above the joint (Weber C/Maisonneuve fracture).
- Stage IV: Posterior inferior tibiofibular ligament (PITFL) syndesmotic rupture or avulsion of the posterior lateral malleolus; known as Volkmann's fracture.
Supination Adduction (SA) Ankle Injury
- Stage I: Rupture of lateral collateral ligaments; avulsion fracture of the lateral malleolus; transverse fracture of the distal fibula below the ankle joint (Weber A).
- Stage II: Oblique or near vertical fracture of the medial malleolus.
Supination External Rotation (SER) Ankle Injury
- Stage I: AITFL syndesmotic rupture/fracture of distal lateral tibia; known as Tillaux-Chaput fracture.
- Stage II: Spiral fracture of the fibula (Weber B classification); Wagstaffe fracture may occur at this stage.
- Stage III: PITFL syndesmotic rupture or avulsion; known as Volkmann's fracture with avulsion of postero-lateral tibia.
- Stage IV: Transverse avulsion fracture of the medial malleolus or rupture of the deltoid ligament.
Mechanism of Fracture
- Supination External Rotation (SER) is the most common mechanism for ankle fractures, accounting for 40-70% of all cases.
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Description
Explore the stages of a Pronation-Abduction ankle injury using the Lauge-Hansen classification through these flashcards. This quiz will enhance your understanding of the specific fractures associated with each stage and their implications in ankle injuries.
