Additional Supporting Information may be found in the online version of this article.

jbmr_1550_sm_Suppl-Radiograph-A.tif2812KRadiograph A – Atypical fracture with major features only
jbmr_1550_sm_Suppl-Radiograph-B.tif1664KRadiograph B – Atypical fracture with major and minor radiograph features pre-fracture
jbmr_1550_sm_Suppl-Radiograph-C.tif1632KRadiograph C – Atypical fracture with major and minor radiograph features post-fracture
jbmr_1550_sm_Supplmental-1.doc24KSupplemental 1: ICD-9 Fracture Code Categories
jbmr_1550_sm_Supplmental-2.doc36KSupplemental 2: FSF* missing radiographs by year
jbmr_1550_sm_Supplmental-3.doc34KSupplemental 3: Changes in FSF* fracture category at various levels of clinical review

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