This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fracture Neck of Femur, Subject name: Orthopaedics
Which prosthesis is shown below in the X-ray? 
Select and explain. 
A. Austin Moore's prosthesis, B. Thompson prosthesis, C. Articular resurfacing, D. Birmingham hip replacement
A: Austin Moore's prosthesis
Answer: A: Austin Moore's prosthesis 
Explanation: Ans. (a) Austin Moore prosthesis.Note the fenestrations in stem of Austin Moore's prosthesis for ingrowth of bone and initiation of self-locking process. This is used when the calcar femorale is sufficient. When the calcar femorale is deficient, Thompson prosthesis is used with bone cement.Image source - style="font-family: Times New Roman, Times, serif">