Lauge-Hansen Classification System

Question 1

Ligaments of the Medial Collateral Ligament Complex

Answer 1

Ant. and Post. Tibiotalar
Tibiocalcaneal
Tibionavicular
Tibiospring ligament

Question 2

AITFL stands for

Answer 2

Anterior-Inferior TIBIO-fibular ligament

Question 3

ATFL stands for

Answer 3

Anterior TALO-fibular Ligament

Question 4

Ligaments of the Lateral Collateral Ligament Complex

Answer 4

ATFL, PTFL, and calcaneofibular ligaments

Question 5

Ligaments of the Syndesmotic Ligament Complex

Answer 5

AITFL, PITFL, and transverse tibiofibular ligaments and Interosseous membrane

Question 6

Most common fracture pattern

Answer 6

SER (40-70% of all ankle fractures)

Question 7

SER Stage 1

Answer 7

AITFL fracture, radiographically occult (subtle widening of tibia-fibula overlap on AP)

Question 8

SER 2

Answer 8

Stage 1 + Spiral fracture of the lateral mal at the level of the plafond in a low ant., high post. direction

Question 9

SER 3

Answer 9

Stage 1 and 2 + PITFL or Post. Mal

Question 10

SER 4

Answer 10

Stages 1,2,3 + Med. Mal fx or Deltoid ligament rupture

Question 11

Type of medial mal fx in SER 4

Answer 11

Transverse, but can also be oblique

Question 12

SA 1

Answer 12

Transverse fx of lat mal at or below the level of the plafond, with rupture of the ATFL or calcaneofibular ligament

Question 13

SA 2

Answer 13

SA 1 + Vertical Fx of the medial mal

Question 14

PER 1

Answer 14

Deltoid ligament or fx of the med mal

Question 15

PER 2

Answer 15

PER 1 + AITFL/Interosseous rupture

Question 16

PER 3

Answer 16

PER 1,2 + High (>6 cm) spiral/oblique fracture of the fibula

Question 17

PER 4

Answer 17

PER 1,2,3 + PITFL or Post Mal fx

Question 18

PA 1

Answer 18

Deltoid ligament rupture or transverse fx of med mal (looks a lot like PER1)

Question 19

PA 2

Answer 19

PA 1 + Post. Mal fx

Question 20

PA 3

Answer 20

PA 1,2 + Oblique fracture of fibula (high lat, low med) above the talotibial joint