This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around Hip, Subject name: Orthopaedics
Flexion, adduction and internal rotation is seen in: 
Select and explain. 
A. neck of femur, B. Ant dislocation of hip, C. Post dislocation of hip, D. Congenital dislocation hip
C: Post dislocation of hip
Answer: C: Post dislocation of hip 
Explanation: Ans: c (Post dislocation of hip) Ref: Maheswari, 3rd ed, p. IIIFlexion adduction and internal rotation is seen in posterior dislocation of hipPosterior dislocation - Flexion + adduction + internal rotation + shorteningAnterior dislocation - Flexion + abduction + external rotation + shorteningFracture neck of femur - Flexion + adduction + external rotation + shorteningIntertrochantric - Flexion + adduction + extenal rotation + shorteningAttitude in TB hip:Stage of synovitis - Flexion + abduction + external rotation (apparent lengthening)Stage of arthritis - Flexion + adduction + internal rotation (app shortening)Stage of erosion - Flexion + adduction + internal rotation (true shortening)