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Case of the Week 585 
What is the most likely diagnosis?
- 41 year-old with hip pain following a motor vehicle collision
Frontal Radiograph of Pelvis
- Posterior Hip Dislocation
- Femoral Neck Fracture
- Diastasis of the Symphysis
- Inguinal Hernia
- Anterior Hip Dislocation
Additional image - None
Additional Images
None
Answer:
5. Anterior Hip Dislocation
More (Click Discussion Tab)
Anterior Hip Dislocation
General Considerations
- Hip dislocation accounts for only 5% of all dislocations
- Posterior hip dislocations are much more common than anterior hip dislocations (90% to about 10%)
- Mechanism in anterior dislocation classically occurs when knee strikes dashboard with the thigh abducted, externally rotated with hip flexed
- Also falls from a height
- Blow to the back while in squatted position
- Greater force required to dislocate an adult's hip than a child's
MORE . . .
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| LearningRadiology.com |
is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology. |
