Lauge-Hansen classification

The Lauge-Hansen classification is a system of categorizing ankle fractures based on the foot position and the force applied.

Classification

Grade	Sequence
Supination-Adduction	Talofibular ligament sprain or distal fibular avulsion fracture Vertical medial malleolus fracture and impaction of anteromedial distal tibia
Supination-External rotation	Anterior tibiofibular ligament sprain Lateral short oblique fibular fracture (anteroinferior to posterosuperior) Posterior tibiofibular ligament rupture or avulsion of posterior malleolus Medial malleolus transverse fracture or disruption of deltoid ligament
Pronation-Abduction	Medial malleolus transverse fracture or disruption of deltoid ligament Anterior tibiofibular ligament sprain Transverse comminuted fracture of the fibula above the level of the syndesmosis
Pronation-External rotation	Medial malleolus transverse fracture or disruption of deltoid ligament Anterior tibiofibular ligament disruption Lateral short oblique or spiral fracture of fibula (anterosuperior to posteroinferior) above the level of the joint Posterior tibiofibular ligament rupture or avulsion of posterior malleolus

See also

• Danis–Weber classification
• Herscovici classification