This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Elbow injuries, Subject name: Orthopaedics
what is Posada&;s fracture ? 
Select and explain. 
A. Transcondylar fracture of humerus, B. Fracture lateral condyle of humerus, C. Fracture medial condyle of humerus, D. Fracture anatomical neck of humerus
A: Transcondylar fracture of humerus
Answer: A: Transcondylar fracture of humerus 
Explanation: Transcondylar fracture of the distal pa of the humerus with associated dislocation (Posadas fracture) is rare. Stabilization of this fracture is often difficult because the distal fragments are small and are predominantly composed of impacted aicular cailage. Ref : essential ohopaedics maheshwari and mhaskar 9th ed