Lauge-Hansen

LAUGE- HANSEN

Supination-Adduction (SAD)
Stage l – rupture of lateral collaterals ligaments or transverse fracture of lateral malleous below level of ankle joint
Stage 2 – vertical fracture of medial malleolus

Pronation-Abduction (PAB)
Stage 1 – rupture of deltoid ligament or transverse avulsion fracture of medial malleolus Stage 2 – rupture of anterior and/or posterior distal tib-fib ligaments
Stage 3 – short fibular fracture at level of ankle joint

Supination-Eversion (SER)
Stage 1 – disruption of anterior tib-fib ligament. Can have either a tibial avulsion (Tillaux-Chaput) or a fibular avulsion (Wagstaffe)
Stage 2 – spiral oblique fracture of the fibula at level of ankle joint
Stage 3 – rupture of posterior tib-fib ligament or tibial avulsion (Volkmann) Stage 4 – ruptured of deltoid or transverse fracture of medial malleolus

Pronation-External Rotation (PER)
Stage 1 – rupture of deltoid ligament or transverse avulsion of medial malleolus
Stage 2 – disruption of anterior tib-fib ligament with rupture of interosseous ligament and Tillaux-Chaput or Wagstaffe avulsions
Stage 3 – high fibular fracture above level of ankle joint (Maisonneuve fracture) Stage 4 – Posterior tib-fib ligament or Volkmann fracture