This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
Wandering acetabulum is seen in - 
Select and explain. 
A. Fracture acetabulum, B. Dislocation of femur, C. CDH, D. Tubeculosis of hip
D: Tubeculosis of hip
Answer: D: Tubeculosis of hip 
Explanation: Wandering acetabulum is seen in tuberculosis of hip when destroyed head dislocates from the acetabulum.