This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital Dislocation of Hip (C.D.H.), Subject name: Orthopaedics
Posterior dislocation of hip results in: 
Select and explain. 
A. Abduction, internal rotation, extension, B. Adduction, internal rotation, extension, C. Adduction, internal rotation, flexion, D. Abduction, external rotation, flexion
C: Adduction, internal rotation, flexion
Answer: C: Adduction, internal rotation, flexion 
Explanation: Ans. (c) Adduction, internal rotation, flexionRef: Maheshwari 5th ed. /130* Posterior dislocations comprise approximately 80-90% of hip dislocations caused by Motor Vehicle Crash.* In posterior hip dislocations, the femoral head goes posteriorly causing the femur to get adducted and internally rotated.* Posterior dislocation: The hip is Flexed, ADducted and Internally Rotated (Mn: FADIR)* Anterior dislocation: The hip is minimally Flexed, markedly ABducted, and Externally Rotated (Mn: FABER).