Abos - Trauma Principles & Pelvic Trauma - Management Of Specific Injury Patterns

Front 1

What are the two components of the preferred technique for open reduction with internal fixation (ORIF) if SI joint dislocation?

Back 1

Anterior plate
Percutaneous SI screws

Front 2

An anterior approach should be avoided in which four clinical situations?

Back 2

Ipsilateral marginal sacral lip fracture
Obese patient
Anterior external fixator
Colostomy

Front 3

What construct type is preferred for posterior ring fixation? Explain?

Back 3

Triangular osteosynthesis
Plate with pedicle sacral screw and two ilium screws at 90 degrees

Front 4

What nerve root is most commonly injured by SI screws? What nerve root is closest anatomically?

Back 4

L5 most often injured
L4 closet anatomically

Front 5

What are the two contraindications to the use of SI screws?

Back 5

Transitional vertebrae
Hypoplastic sacral segments

Front 6

What is the definition of an SI fracture-dislocation? What are the two components of the ORIF technique as it is generally preformed?

Back 6

Definition: ilium fracture and SI dislocation
Posterior plate
Tansiliac bars

Front 7

What are the indications for surgical treatment of sacral fracture? An injury to what zone results in this clinical picture?

Back 7

Bowel or bladder dysfunction
Zone III (because bilateral involvement of sacral roots is generally necessary for dysfunction)

Front 8

What is the preferred approach for ORIF of a sacral fracture? Why?

Back 8

Approach posteriorly
Better visualization and ability to decompress

Front 9

A U-shaped sacral fracture may result in what deformity?

Back 9

Kyphosis

Front 10

During posterior iliac crest graft harvest, where cant he cluneal nerves be found?

Back 10

8 cm lateral to posterior superior iliac spine (PSIS)