Physical Examination for Suspected Sacral Fracture

Critical Initial Assessment Components

The World Journal of Emergency Surgery recommends assessing for hemodynamic instability defined as systolic blood pressure <90 mmHg, requirement for bolus infusions/transfusions or vasopressors, base deficit >6 mmol/L, shock index >1, or transfusion requirement of 4-6 units of packed red blood cells within 24 hours 1
Sacral fractures are among the principal injuries associated with hemodynamic instability in pelvic trauma, particularly open-book injuries, vertical-shear injuries, and sacral fractures themselves 1

The American College of Surgeons recommends inspecting the perineum and scrotum for hematoma, which suggests urethral injury that occurs in 7-25% of pelvic ring fractures 1
The American College of Surgeons recommends checking for blood at the urethral meatus, a key clinical sign of urethral injury 1
The American College of Surgeons recommends not inserting a transurethral catheter without prior investigation if any signs of urethral injury are present, as this can worsen the injury 1

The American College of Surgeons recommends performing digital rectal examination to assess for high-riding or non-palpable prostate, which indicates urethral injury 1

The World Journal of Emergency Surgery recommends assessing pelvic ring stability through gentle compression and distraction maneuvers, as sacral fractures commonly occur with pelvic ring injuries 1
The American College of Radiology recommends evaluating for hip dislocation, which requires prompt reduction and is important to identify on initial pelvic radiographs 1

The Journal of the American College of Radiology recommends not relying solely on clinical examination, as clinical assessment for thoracolumbar spine fractures has only 81% sensitivity and 68% specificity in children, and similar limitations exist in adults 2, 3

The World Journal of Emergency Surgery recommends recording hemodynamic parameters to guide subsequent imaging and management decisions 1