Pott's fracture

Pott's fracture, also known as Pott’s syndrome I and Dupuytren fracture, is an archaic term loosely applied to a variety of bimalleolar ankle fractures. The injury is caused by a combined abduction external rotation from an eversion force. This is a fracture of the fibula near the ankle, often accompanied by a break of the medial malleolus of the tibia or rupture and displacement of the internal lateral ligament.

The bimalleolar fractures are less likely to be arthritic than trimalleolar fractures.

History
English physician Percivall Pott experienced this injury in 1765 and described his clinical findings in a paper published in 1769.

The term "Dupuytren fracture" refers to the same mechanism, and it is named for Guillaume Dupuytren.