Why is a CT scan of the hip performed after reduction of a dislocated hip?:
Correct Answer: Evaluate for fracture fragment in the hip joint
Posterior Hip Dislocation – 80 to 85%; associated with fractures of the posterior rim of the acetabulum, femoral head anterior Hip Dislocation – 5 to 10%; associated with fractures of the acetabular rim, greater trochanter, femoral neck, and femoral head. MRI may be useful to detect osteonecrosis of the femoral head. Sources: Dähnert 5th p. 67; Greenspan 3rd p. 221-222