Ankle Injuries Flashcards Preview

The Musculoskeletal System > Ankle Injuries > Flashcards

Flashcards in Ankle Injuries Deck (17):
1

Ankle injuries are most commonly due to what?

Inversion injury and/or rotational force on a planted foot

2

When there is a lateral ankle sprain, which ligaments are affected?

  1. Anterior/posterior talofibular ligaments
  2. Calcaneofibular ligaments

3

How can sprains of the lateral ankle ligaments be characterised?

  1. Pain
  2. Bruising
  3. Mild/moderate tenderness
  4. Fractures (usually only in osteoporotic bone)

4

Whih criteria are used to assess a possible ankle fracture in A&E

Ottawa criteria

5

What is the purpose of the Ottawa criteria for potential ankle fractures?

It gives guidance on whether an X-ray is required or not

6

Which criteria merit an X-ray for an ankle injury?

  1. Severe localised tenderness of distal tibia/fibula
  2. Inability to weight bear for four steps

7

What consitutes a stable ankle fracture?

Isolated distal fibular fracture

8

What is the treatment for a stable ankle fracture?

Walking cast or splint for 6 weeks

9

What consitutes an unstable ankle fracture?

Distal fibular fracture with rupture of the deltoid ligament

10

What is the treatment for an unstable ankle fracture?

ORIF with plate and screws

 

11

What would cause suspicion of a ruptured deltoid ligament?

Medial bruising and tenderness

12

With talar shift, which way will the foot be rotated?

Inverted

13

By definition, the deltoid ligament must be ruptured if there is no medial malleolar fracture in which two conditions?

  1. Talar shift occurring on a mortise AP view
  2. Talar tilt with the talus and tibial plafond being non parallel

14

Talar shift poses a greatly increased risk of what?

Post traumatic OA

15

What treatment is required if talar shift is present?

Anatomical reduction and rigid internal fixation (ORIF)

16

Bimalleolar fractures are ________ fractures

Bimalleolar fractures are unstable fractures

17

Why may ORIF be delayed by 1-2 weeks with ankle fractures?

  1. There may be substantial soft tissue swellings and fracture blisters
  2. Reduces risk of wound healing problems and infection risk

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