Metaphyseal and Rib Fractures in Child Abuse
Metaphyseal and Rib Fractures in Child Abuse
Metaphyseal and Rib Fractures in Child Abuse
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Jeremy Tucker, HMS IV<br />
Gillian Lieberman, MD<br />
Mechanism of fracture<br />
Excessive leverage of rib over transverse process<br />
consistent with fracture features<br />
Classic type 1 lever:<br />
Force on ventral portion of rib<br />
Fulcrum at articulation between transverse<br />
process <strong>and</strong> rib<br />
Load<strong>in</strong>g (pull) on costovertebral articulation<br />
Costovertebral ligaments stronger than rib, so<br />
mechanical failure over po<strong>in</strong>t of fulcrum<br />
Kle<strong>in</strong>man, PK. Diagnostic Imag<strong>in</strong>g of <strong>Child</strong> <strong>Abuse</strong>, Second Edition. 1998.<br />
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