System used to describe radiographic findings in distal humeral intercondylar ÒTÓ fractures. Type 1, non-displaced fracture between capitellum and trochlea; type 2, nondisplaced ÒYÓ or ÒTÓ fracture; type 3, separation with rotational condylar displacement; type 4, significant condylar separation with comminuted articular surface.