In extension type of supracondylar fracture, the usual displacement

Ans. is 'd' i.e., Posterolateral Types of supracondylar fracture Supracondylar fracture is broadly classified into extension type and flexion type. 1. Extension type It is the most common type (97 - 99%). Distal fragment is extended (tilted backward/posteriorly) in relation to proximal fragment. Occurs due to hyperextension injury after fall on outstretched hands. Generally, displacement of distal fragment may be : ? Posteromedial (70-80%) Posterolateral (20-30%) 2. Flexion type It is less common type (1-3 %) Distal fragment is flexed (tilted forward/anteriorly) in relation to proximal fragments. The mechanism of injury generally is believed to be a fall directly onto the elbow rather than a fall on outstretched hand. As the extension type fracture is more common (97 - 99%), the most common elbow injury in children is extension type of supracondylar fracture.