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Pelvis Low Energy Trauma 1

Low-energy pelvic fractures  typically occur in elderly patients who sustain ground level falls in the setting of osteopenia/osteoporosis. 
This frequently results in a mild type I lateral compression pattern of injury without resultant pelvic instability.

FINDINGS: Mildly displaced fractures of the left sacral ala, inferior pubic ramus and superior pubic ramus. No widening of the sacroiliac joint of pubic symphysis. Hip alignment is maintained.  





In patients severe osseous demineralization and reported inability to bear weight, consider rapid MRI of the hip and pelvis for greater sensitivity for fracture detection. 

Pelvis Low Energy Trauma 2

On every study, trace key contour lines and compare joint spaces to assess for asymmetry and fracture, which often appears as subtle cortical disruption or impaction. For history of GLF, look specifically for superior and inferior pubic rami fractures and nondisplaced, impacted sacral alar fractures. 

Example report negative for traumatic injury


  • No acute fracture. The pubic symphysis is normal. The sacroiliac joints are normal.