This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic and endocrine disorders, Subject name: Orthopaedics
The most common approach for total hip ahroplasty is 
Select and explain. 
A. Anterolateral, B. Posterolateral, C. Anteromedial, D. Posteromedial
B: Posterolateral
Answer: B: Posterolateral 
Explanation: Total hip replacement is an operation where both, the acetabulum and the head of the femur are replaced with aificial components. For the acetabulum, a cup made of high-density polyethene is used, and for the head, a specially designed prosthesis made of metal alloy (cobalt-chromium alloy) is used. The most common approach for total hip ahroplasty is the posterolateral approach. Ref: Maheshwari 6e pg 338.