A six year old child presented with a valgus deformity at his right elbow since 3 years that is gradually progressive.  He has history of cast applied for 6 weeks after fall on outstretched hand 3 years back.  The probable fracture was-: (A) Malunited lateral Condylar fracture of Humerus, (B) Malunited Supracondylar Fracture of Humerus, (C) Posterior dislocation of elbow, (D) Fracture medial condyle of humerus
Answer is A. (Refer: Mohindra’s Fundamentals of Orthopedics, 2nd edition, pg no. 16)
Fractures commonly showing cubitus valgus deformity due to malunion

Fracture lateral condyle humerus
Monteggia Fracture dislocation