Danis-Weber Classification

Question 1

Weber A

Answer 1

Fibula fracture below the level of the syndesmosis with often concomitant medial mal fracture, most ligaments intact

Question 2

Weber B

Answer 2

Fibula fracture at the level of the syndesmosis, distal tibiofibular articulation has no widening, may have medial mal fx

Question 3

What direction does Weber B fibula fx extend

Answer 3

superolaterally

Question 4

Weber B ligament fractures

Answer 4

Deltoid ligament, syndesmosis may be torn along with a medial mal fx

Question 5

Weber C

Answer 5

Fibular fracture proximal to the syndesmosis, syndesmosis disrupted with widening of the distal tibiofibular articulation, medial mal or deltoid ligament rupture present

Question 6

Which type(s) need ORIF

Answer 6

Definitely Type C because syndesmosis is disrupted with widening, but Type B is often unstable requiring ORIF as well

Question 7

When is Type B unstable

Answer 7

Depends on the status of the medial structures (med. mal and deltoid ligament) and syndesmosis.

Question 8

What kind of fx is Type A usually

Answer 8

Transverse

Question 9

What kind of fx is Type B usually

Answer 9

Spiral