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Trauma
intermediate
X-Type

Traumatic Hip Dislocation

Hip Trauma

A 28-year-old man is brought to the emergency department after a motor vehicle accident. He was an unrestrained driver. His left leg is shortened, adducted, and internally rotated. Hip radiograph confirms a posterior hip dislocation. CT scan shows an associated posterior wall acetabular fracture. The trauma team is preparing for urgent reduction. Regarding traumatic hip dislocation:

Mark each as TRUE or FALSE

A

Posterior dislocations account for approximately 90% of traumatic hip dislocations; the mechanism is...

B

Urgent closed reduction within 6 hours is critical to reduce the risk of osteonecrosis of the femora...

C

Anterior dislocations are more common; posterior dislocation causes abduction and external rotation;...

D

Thompson and Epstein classify posterior hip dislocations: Type I (no fracture), Type II (single larg...

E

Complications include osteonecrosis (related to time to reduction, occurs in 5-40%), post-traumatic ...

Answer the questions to see explanations

Click T (True) or F (False) for each option