ASBMR criteria for atypical femoral fractures
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When to use
Fracture is associated with minimal or no trauma, as in a fall from a standing height or less
No
Yes
Fracture line originates at the lateral cortex and is substantially transverse in its orientation, although it may become oblique as it progresses medially across the femur
No
Yes
Complete fracture extends through both cortices and may be associated with a medial spike; incomplete fractures involve only the lateral cortex
No
Yes
Fracture is noncomminuted or minimally comminuted
No
Yes
Localized periosteal or endosteal thickening of the lateral cortex - Beaking or Flaring - present at the fracture site
No
Yes
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