Pelvic Fractures Flashcards Preview

The Musculoskeletal System > Pelvic Fractures > Flashcards

Flashcards in Pelvic Fractures Deck (17):

In which two age groups do pelvic fractures occur?

  1. Young (high energy)
  2. Old (osteoporosis and low energy)


In the pelvic ring is disrupted in one place then it will be what?

Also disrupted in another location


Why is there a serious risk of hypovolaemia with pelvic fractures?

The interal iliac artery and pre-sacral venous plexus are prone to injury


What are the three main patterns of pelvic injury?

  1. Lateral compression fracture
  2. Vertical shear fracture
  3. Anteroposterior compression injury


What is a lateral compression fracture of the pelvis and how does it occur?

Half of the pelvis is displaced medially

Side impact



What is a vertical shear fracture and how does it occur?

Axial force on one hemipelvis causing superior displacement



What is at risk during a vertical shear frcature?

  1. Sacral nerve roots and lumbosacral plexus
  2. Major haemorrhage


What is a clinical sign that a vertical shear fracture has occured?

The leg on the affected side will be shorter


Why is an anteroposterior compression injury sometimes called an open book pelvic fracture?

There is wide disruption of the pubic symphysis and the pelvis opens up like the pages in a book


How can blood loss be treated in pelvic fractures which involve high blood loss?

  1. IV fluids
  2. Blood


In terms of bleeding why are anteroposterior compression injuries of the pelvis arguably the most dangerous?

Pelvic space increases greatly in size so more blood can be held encouraging bleeding


How can bleeding be reduced especially in anteroposterior compression injuries of the pelvis?

  1. Tied sheet or pelvic binder to reduce pevic space
  2. External fixator


Ongoing haemodynamic instability due to a pelvic fracture requires what?

  1. Angiogram and embolisation
  2. Open packing of the pelvis


Why is a PR exam mangatory in a serious pelvic fracture?

  1. To assess sacral nerve root function
  2. Look for presence of blood


Pelvic injuries to the elderly tend to require what treatment?

Conservative management

(they are minimally displaced)


Posterior wall fracture of the acetabulum are generally associated with what?

Hip dislocations


How can the pattern of a posterior wall fracture of the acetabulum be determined?

  1. Plain X-rays (with oblique views)
  2. CT scans

Decks in The Musculoskeletal System Class (58):