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metaphyseal corner fracture
A specific fracture pattern in infants highly suggestive of non-accidental trauma.
Full Definition
A metaphyseal corner fracture, also known as a classic metaphyseal lesion (CML), is a subtle fracture through the primary spongiosa of the metaphysis in infants. This fracture pattern results from violent shaking or twisting forces and is considered pathognomonic for child abuse. The fracture appears as a corner or bucket-handle configuration on radiographs and is most commonly seen at the distal femur, proximal and distal tibia, and distal radius.
Usage
Usage note: Highly specific terminology in child abuse evaluation; requires immediate multidisciplinary involvement.
In Context
- "The presence of bilateral metaphyseal corner fractures raised concern for non-accidental trauma." — Child protection report
- "Skeletal survey revealed a metaphyseal corner fracture at the distal femur in this 6-month-old infant." — Radiology interpretation
Also known as
classic metaphyseal lesion
CML
bucket-handle fracture
Don't confuse with
normal metaphyseal irregularity
growth arrest line