bucket handle fracture
A specific type of metaphyseal corner fracture appearing as a curved lucency along the metaphyseal edge, highly suspicious for non-accidental trauma.
Full Definition
A bucket handle fracture represents a classic metaphyseal lesion (CML) seen in cases of suspected child abuse, appearing as a crescentic or bucket-handle-shaped lucency along the metaphyseal margin. This injury results from shearing forces applied across the metaphyseal-diaphyseal junction during violent shaking or twisting motions. The fracture occurs through the primary spongiosa, creating the characteristic curved appearance on radiographs. These injuries are particularly common in infants and are considered pathognomonic for inflicted trauma when identified in appropriate clinical contexts. Careful radiographic technique and systematic skeletal survey protocols are essential for detection.
Usage
Usage note: Distinguished from corner fractures by the curved rather than triangular appearance.
In Context
- "The subtle bucket handle fracture of the distal tibia was only visible on the lateral projection." — Skeletal survey report
- "Follow-up radiographs demonstrated healing of the bucket handle fracture with metaphyseal sclerosis." — Child protection case documentation