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: Surgery
Recurrent dislocations are least commonly seen in: 
Select and explain. 
A. Ankle, B. Hip, C. Shoulder, D. Patella
A: Ankle
Answer: A: Ankle 
Explanation: Complete dislocation of Ankle is rare because the talus cannot be completely dislocated from the joint unless all ligaments are torn. Recurrent ankle instability following ligamentous injury may be seen, but such instability is not associated with frank dislocations (although subluxation of joint may be seen). Ref: Campbell's Operative Ohopaedics, 10th Edition, Pages 2655, 2670, 2677, 2717; Oxford Handbook of Ohopaedic and Trauma Nursing By Rebecca Jester, Julie Santy, Jean Rogers, Page 342