What injury is caused by external rotation of the ankle?

External rotation is often hypothesized as the key mechanism of syndesmotic ankle injuries. External rotation of the foot is believed to cause the talus to wedge between the tibia and fibula, which generates tibiofibular diastasis.

Is pronation an external rotation?

The foot is in a pronated position at the time of injury with the leg internally rotating, which produces a relative external rotation of the talus in the ankle mortise. The ankle fracture rotates through a fibular axis.

What is a Weber C fracture of the ankle?

Weber C: This fracture is above the ankle joint and there may be an additional fracture on the inside of your ankle. This fracture is not stable and will need surgery. Weber Fractures. Management of your fracture.

What is a ser 4 ankle fracture?

The sequence of injury in a SER fracture is anterior tibiofibular ligament disruption (SER-I), oblique fibula fracture (SER-II), rupture of posterior tibiofibular ligament or posterior malleolus fracture (SER-III) followed by deltoid ligament rupture or medial malleolus fracture (SER-IV).

What is a pilon fracture?

A pilon fracture is a type of break of the shinbone (tibia) that happens near the ankle. Most of the time, it includes breaks in both the tibia and fibula of the lower leg. The lower ends of these bones make up part of the ankle. The term “pilon” comes from the French word for pestle.

What is a pronated ankle?

What does the word “pronation” actually mean? Pronation is a natural and normal movement of the foot that occurs during foot landing while running or walking. Simply put, it’s your ankle and arch rolling or tipping inwards slightly, creating some shock absorption as your foot hits the ground after each step.

How can I pronate my feet?

In a normal stride, your foot should roll inward a bit (pronate) so that your weight is on the ball of your foot. Then you push off the big toe. If you supinate, most of your weight falls on the outside of your foot and you push off from your outer toes instead.

What is the most common ankle fracture?

The most common fracture is to the bony bump on the outside of the ankle, the lateral malleolus. The lateral malleolus is the bottom of the fibula, the smaller lower leg bone. The bump on the inside of your ankle, the medial malleolus, is less commonly fractured.

What is a Smith’s fracture?

Introduction. A Smith fracture is an eponym for an extraarticular fracture of the distal radius featuring a volar displacement or angulation of the distal fragment. It is also known as a reverse Colles fracture since the more common Colles fracture features a dorsal displacement of the distal fracture fragment.

What is a Rolando’s fracture?

Rolando fractures are intra-articular fractures of the base of the first metacarpal with the detachment of several fragments – typically three. • Rolando fractures account for 21% of fractures of the base of the first metacarpal.