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Pelvic Trauma Radiology

Pelvic Trauma Radiology. November 2001. Classification. stable vs. unstable breaks in the ring posterior arch vs. anterior arch OR both single bone without break of ring acetabular mechanism – LC, AP, VS. Stable. low speed mechanisms falls from low height athletic injuries

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Pelvic Trauma Radiology

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  1. Pelvic TraumaRadiology November 2001

  2. Classification • stable vs. unstable • breaks in the ring • posterior arch vs. anterior arch OR both • single bone without break of ring • acetabular • mechanism – LC, AP, VS

  3. Stable • low speed mechanisms • falls from low height • athletic injuries • most common – pubic ramus/body • Other – transverse sacral, coccyx, apophyseal/avulsion injuries

  4. Unstable • involve both anterior and posterior arches • mechanisms • high speed MVC’s or fall from height • lateral compression  transverse pubic rami #, iliac wing, sacrum • anterior compression  “open-book” injury, longitudinal rami # • vertical shearing forces • SI joint subluxation/dislocation, symphyseal diastasis

  5. associated injuries • pelvis is boney ring – find one fracture, look for another • subluxation/dislocation SI jt or pubic symphysis • acetabulum/femoral head/joint fragments • pelvic contents • bladder/urethra, rectalsigmoid, vagina/uterus, vasculature, nerve

  6. acetabular • types • posterior • ilioischial column • transverse • iliopubic • associated with hip dislocation

  7. avulsions • ASIS – sartorius • AIIS – rectus femoris • ischial tuberosity – hamstring (kicking)

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