This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fracture of the Humerus, Subject name: Orthopaedics
A 6-year-old child has an accident and had fracture elbow, after 4 years presented with tingling and numbness in the ulnar side of finger, fracture is: 
Select and explain. 
A. Supracondylar fracture humerus, B. Lateral condylar fracture humerus, C. Olecranon fracture, D. Dislocation of elbow
B: Lateral condylar fracture humerus
Answer: B: Lateral condylar fracture humerus 
Explanation: (b) Dislocation of elbow- Fracture elbow with tingling subsequently after few years--"Tardy ulnar nerve palsy". Most common cause is fracture lateral condyle humerus.