Lauge-Hansen’s classification, which was published in a issue of Archives of Surgery, has become one of the most widely used ankle. The Lauge-Hansen classification is a system of categorizing ankle fractures based on the foot position and the force applied. Classification, Description, Notes. Supination External Rotation, Most common mechanism (% of all fractures). 1, Anterior tibiofibular ligament rupture.
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Lauge-Hansen classification of ankle injury • LITFL Medical Blog • Eponym
Normally you probably would not have noticed these. First impression The radiographs show a fracture of the posterior malleolus. Weber B This is a transsyndesmotic fracture with usually partial – and less commonly, total – rupture of the syndesmosis.
Immediately after the injury the injured parts may again align, which can make it difficult to detect the injuries. An AP and lateral radiograph are shown in figures A and B respectively. This also is shown because supination external rotation injuries often involve disruption of the deltoid ligament, which in a supinated foot classifictaion be under compression and unlikely to tear.
Like the Danis-Weber classification, it is based only on radiographic criteria, in contrast classufication the Lauge-Hansen system, which unlike all other appendicular fracture classification systems, incorporates the mechanism of injury. Using modern biomechanical techniques, Michelson et al. Stage 3 More posterior displacement of the lateral malleolus fragment by the talus results in tension on lzuge posterior syndesmosis with rupture or avulsion of the posterior malleolus.
Almost always the avulsion is seen as a horizontal fracture. Author information Article notes Copyright and License information Disclaimer.
A tertius fracture is either Weber B stage 3 or – due to Weber C stage 4 arrows. In what direction is the fibula most unstable? Stage 1 – Rupture of the anterior syndesmosis Stage 2 – Oblique fracture of the fibula this is the true Weber B fracture Stage 3 – Rupture of the posterior syndesmosis or – fracture of the posterior malleolus Stage 4 – Avulsion of the medial malleolus or – rupture of the medial collateral bands Scroll through the images.
Weber A Occurs below the syndesmosis, which is intact. Stage Stage 3 More posterior displacement of the lateral malleolus fragment by the talus results in tension on the posterior syndesmosis with rupture or avulsion of the posterior malleolus. Open reduction and internal fixation with restricted weight bearing for 6 weeks.
This impression will direct you to both a Weber uansen well as a Lauge-Hansen classification. Combined experimental-surgical and experimental-roentgenologic investigations. The ankle circle is interrupted at two places i. Medial malleolus transverse fracture or disruption of deltoid ligament Anterior tibiofibular ligament disruption Lateral short oblique hanswn spiral fracture of fibula anterosuperior to posteroinferior above the level of the joint Posterior tibiofibular ligament rupture or avulsion of posterior malleolus.
Effects of binary decision making on the classification of fractures of the ankle.
Stage 1 The images show the usual Weber type A fractures. With more force, the posterior inferior tibiofibular ligament PITFL was injured or the posterior malleolus was fractured in Stage 3. Occurs below the syndesmosis, which is intact. According to Lauge-Hansen this is stage 3 pronation exorotation injury and so the anterior syndesmosis stage 2 must also be ruptured. He returns to clinic five months following surgery complaining of continued ankle pain and instability with weight bearing. A syndesmotic screw was inserted.
The sequences in a Weber B fracture or Lauge-Hansen supination exorotation injury take place laug a laugf manner:.
Observer variation in the Lauge-Hansen classification of ankle fractures: This page was last edited on 27 Octoberat Published online Apr Widening of the tibia-fibular clear space with external rotation stress would be a result of injury of which structure?
Primary and late results of the operative and non-operative treatment. In fact this is an unstable ankle fracture, since there also must be a rupture of the medial collateral ligament stage 1so the ring is broken in two places leading to instability.