This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis and Hip injuries, Subject name: Orthopaedics
Posterior dislocation of hip is characterized by- 
Select and explain. 
A. Marked shoening of limb, B. Lengthening of lim, C. No change in limb length, D. Extension deformity
A: Marked shoening of limb
Answer: A: Marked shoening of limb 
Explanation: * There is typical deformity of flexion, adduction and internal rotation with marked shoening of limb. Ref: Apley's 9th/e p.844