Pelvic Ring Fractures

Anatomy and biomechanics of the pelvis are presented as well as imaging techniques and examples of pelvic ring injuries.

Course ID: Q00432 Category:
Modalities: ,


Satisfaction Guarantee


Targeted CE per ARRT’s Discipline, Category, and Subcategory classification for enrollments starting after February 24, 2023:
[Note: Discipline-specific Targeted CE credits may be less than the total Category A credits approved for this course.]

Computed Tomography: 2.50
Procedures: 2.50
Head, Spine, and Musculoskeletal: 2.50

Radiography: 2.50
Procedures: 2.50
Head, Spine and Pelvis Procedures: 2.50

Registered Radiologist Assistant: 3.00
Procedures: 3.00
Musculoskeletal and Endocrine Sections: 3.00


  1. Introduction
  2. Relevant Anatomy and Biomechanics of the Pelvis
  3. Imaging Evaluation
  4. Pelvic Ring Injuries
  5. Classification of Pelvic Fractures
  6. Lateral Compression Injury
  7. AP Compression Injury
  8. Vertical Shear Injury
  9. Combined Mechanism Injury
  10. Conclusion


Upon completion of this course, students will:

  1. describe the most common causes of displaced pelvic ring fractures
  2. understand why pelvic ring fractures increase the risk of patient mortality
  3. describe complications that may occur as a result of pelvic ring fracture
  4. describe the basic anatomy of the pelvic ring
  5. understand the biomechanical functionality of the pelvic ring
  6. name the ligaments that make up the pelvic rim
  7. know which ligament in the pelvic rim resists vertical shear and flexion forces
  8. name the vascular structure that supplies most of the blood to the pelvic wall and viscera
  9. know the location and anatomic importance of the ASIS
  10. name the radiographic projections on which anterior ring fractures are most often evident
  11. describe the anatomy best visualized by the pelvic outlet radiographic projection
  12. describe the anatomy best visualized by the pelvic inlet radiographic projection
  13. describe the x-ray tube angle and central ray position used to obtain the pelvic outlet projection
  14. describe the x-ray tube angle and central ray position used to obtain the pelvic inlet projection
  15. describe the anatomy best visualized by the Judet radiographic projections of the pelvis
  16. describe the degree of patient obliquity used when acquiring a Judet view of the pelvis
  17. understand how image reconstruction is used when performing CT of the pelvis to rule out fractures
  18. know why MR imaging plays a limited role in imaging patients with polytrauma
  19. name the types of pelvic fractures that tend to displace over time when exposed to normal physiologic loading
  20. be familiar with the Letournel and Judet classification system of pelvic ring injuries
  21. be familiar with the Tile classification system of pelvic ring injuries
  22. be familiar with the Young and Burgess classification system of pelvic ring injuries
  23. know what is used to assist in the visualization of posterior sacral fractures
  24. describe lateral compression type 1, 2, and 3 injuries
  25. know other terms for pelvis lateral compression type 3 injuries
  26. describe how the disruption of certain ligaments can cause lateral compression type 3 injuries to be unstable
  27. describe which anatomic region of the pelvis is the first point of failure In AP compression injuries
  28. understand the naming of pelvic type 2 AP compression injuries in which there is external rotation of one or both hemipelvises
  29. know the indications of posterior ring injury and the independent predictors of instability of the pelvis
  30. describe what causes vertical shear fractures of the pelvis
  31. understand vertical shear fractures of the pelvis and how they are related to age
  32. describe conventional radiographic views that best depict cranial and posterior displacement of the iliac bone
  33. know how medical imaging can assist in diagnosing associated injuries from pelvic vertical shear trauma to the urethra
  34. know where urethral ruptures typically occur due to pelvic ring trauma injuries
  35. be familiar with combined mechanism pelvic ring injuries