Explanation:Metaphyseal corner fractures, also known as bucket-handle fractures, are highly specific for non-accidental trauma in infants. They occur due to shearing forces applied across the metaphysis during shaking or twisting injuries. These fractures involve the primary spongiosa of the metaphysis. Radiographically they appear as small avulsed fragments at the metaphyseal edge. Recognition is crucial because they strongly suggest abuse. Early identification allows protection of the child and appropriate intervention. Reference: Kleinman PK. "Diagnostic Imaging of Child Abuse." American Journal of Roentgenology, 1987.