Foot Injuries Flashcards Preview

The Musculoskeletal System > Foot Injuries > Flashcards

Flashcards in Foot Injuries Deck (22):
1

Calcaneal fractures are usually associated with which type of situation?

Fall from height

2

Calcaneal fractures can be extra-articular or involve which joint?

Subtalar joint

3

If there is a calcaneal fracture, the heel tends to drift into which position?

Valgus

4

Due to the valgus drift after a calcaneal fracture, which problems arise with the lateral ankle tendons?

Impingement

5

What is the main treatment for calcaneal fractures and why is this controversial?

ORIF

May be difficult to achieve skin coverage, wound healing issues especially if a smoker, diabetes etc.

6

Fractures of the talar neck usually occur in which scenarios?

Forced dorsiflexion of foot from rapid deceleration

7

If a talar neck fracture is displaced, what does it involve?

Subluxation of the subtalar joint

(there may also be dislocation of the talar body from the ankle joint or the head of the talus from the talonavicular joint in high energy injuries)

8

Where does the talus get its blood supply?

Anastomosis involving the peroneal, anterior tibial, and posterior tibial arteries

The artery of the tarsal canal is the most vital artery within the anastomosis

9

Displacement, fracture, subluxation or dislocation of the talus all pose a serious risk of what?

AVN

10

What is the treatment of displaced fractures of the talus?

Closed or open reduction and screw fixation

11

What is a Lisfranc fracture-dislocation?

A fracture at the base of the 2nd metatarsal is associated with dislocation of the base of the 2nd metatarsal

(with or without dislocation of other metatarsals at the tarso-metatarsal joints)

12

How will a patient typically present with a Lisfranc fracture-dislocation?

  1. Grossly swollen foot
  2. Bruised foot
  3. Unable to weight bear
  4. Normal x-ray (if so, get a CT)

13

What is the treatment for a Lisfranc fracture-dislocation?

Open or closed reduction with fixation using screws

14

Which metatarsal is most commonly fractured?

5th

15

What is a Jones fracture?

Fracture in the proximal diaphysis of the 5th metatarsal

16

Why is a Jones fracture more serious than a fracture at the base of the 5th metatarsal?

  1. There is relatively poor blood supply
  2. Risk of non-union is higher

17

What is the treatment for a Jones fracture?

  1. Displaced - fixation, usually a single screw
  2. Non-unions - bone grafting and fixation

18

The 2nd metatarsal is a common site for a ______ fracture

The 2nd metatarsal is a common site for a stress fracture

19

How may a fracture of the 2nd metatarsal typically come about?

  1. Spontaneously
  2. After a period of increased exercise

20

Why is diagnosing a stress fracture of the 2nd metatarsal difficult?

Not visible on X-ray until healing/callus has started

(bone scan may aid in the diagnosis)

21

Intra-articular toe fractures require which treatment?

Reduction and fixation if the fragments are sizeable

Open fractures can be stabilised with wires

22

How can toe dislocations be treated?

Closed reduction and either neighbor strapping or wiring

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