PURPOSE : To emphasize the importance of the oblique view of elbow in diagnosis of the lateral condylar fracture traversing the capitulum to propose an appropriate treatment reducing the complication. MATERIALS AND METHODS : We analyzed eight cases of lateral condylar fracture traversing the capitulum among the 192 cases of lateral condylar fracture with preoperative complete roentgenogram and medical record from April, 1992 to September, 1998. RESULTS : In seven cases, it was possible to diagnose as lateral condylar fracture of humerus in initial anteroposterior and lateral view, but it had a difficulty to decide whether fracture line traversing the capitulum. The oblique view provided accurate fracture line to diagnose. One case was diagnosed fracture line traversing the capitulum in lateral view. There was no considerable complications at 18 months follow up in average, except one case with malunion that was transferred form other hospital after operation. CONCLUSION : To make a diagnosis of the lateral condylar fracture traversing capitulum, the oblique view is helpful. We considered that internal fixation is require because the fragment can be displaced progressively.