A 10 year old boy presenting with cubitus a varus deformity and a history of trauma 3 months back on clinical examination, has preserved 3 bony point relationship of the elbow. The most probable diagnosis is?
Old unreduced dislocation of elbow Non- union lateral condylar fracture of humerus Malunited intercondylar fracture of humerus Malunited supracondylar fracture of humerus