Orthopedics · Pelvic and Acetabular Trauma

A 30-year-old motorcyclist sustains a high-energy pelvic fracture with pubic symphysis diastasis of 4 cm and sacroiliac joint widening on AP pelvis X-ray. He is hemodynamically unstable despite 2L crystalloid resuscitation. The FIRST step in the orthopaedic management of this pelvic ring injury is:

  • A Emergency percutaneous iliosacral screw fixation
  • B Formal open reduction and internal fixation of the pubic symphysis
  • C Diagnostic peritoneal lavage
  • D Application of a pelvic binder or external fixator to reduce pelvic volume
Correct answer: D. Application of a pelvic binder or external fixator to reduce pelvic volume

Explanation

In hemodynamically unstable pelvic ring injuries (APC type II/III or VS patterns), the immediate priority is pelvic volume reduction to tamponade venous bleeding — achieved rapidly with a pelvic binder (sheet or commercial device at the level of the greater trochanters) or an emergency external fixator. This reduces pelvic volume by up to 25%, decreasing venous bleeding. Definitive fixation (ORIF/percutaneous SI screws) is delayed until the patient is hemodynamically stable. Pelvic binder application is a resuscitative measure, not definitive treatment.

Reference: Maheshwari Essential Orthopaedics, 6th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.

Sponsored

Want to test yourself?

Create a free account for timed mock tests, mistake tracking, and FSRS spaced-repetition revision across 23,000+ MCQs.

Start free → Log in

More Pelvic and Acetabular Trauma MCQs

See all Pelvic and Acetabular Trauma MCQs →