Atypical femoral fracture is a well-documented adverse reaction to bisphosphonate treatment, but may also have other causes. This dataset contains 433 radiographs from 149 patients with complete AFF, and 549 radiographs from 224 patients with normal femur fractures. There are no diagnoses of cancer, to reduce the risk of confounding by indication.

Keywords: Radiology, X-ray, Annotated, Femur, AFF, Atypical femoral fracture.

Sample images

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Dataset information

Short name	AFFAI
Origin	Clinical
Cite as	Jörg Schilcher and Chunliang Wang (2021) X-ray examinations of atypical femoral fractures doi:10.23698/aida/affai
Field	Radiology
Organ	Femur
Age span
Title	X-ray examinations of atypical femoral fractures
Author	Jörg Schilcher Chunliang Wang
Year	2021
DOI	doi:10.23698/aida/affai
Status	Completed
Version	1.0
Scans	981
Annotations	981
Size	3.88GB
Resolution
Modality	CR
Scanner
Stain
Phase
References	Georg Zdolsek, Yupei Chen, Hans-Peter Bögl, Chunliang Wang, Mischa Woisetschläger & Jörg Schilcher (2021) Deep neural networks with promising diagnostic accuracy for the classification of atypical femoral fractures, Acta Orthopaedica, 92:4, 394-400, DOI: 10.1080/17453674.2021.1891512
Copyright	Copyright 2021 Linköping University, Jörg Schilcher, KTH, Chunliang Wang
Access	Available under the following licenses, described in the License section below. Controlled access Free for use in legal and ethical medical diagnostics research. AIDA BY license Free for use within AIDA with attribution.

Annotation

Atypical femoral fractures have a characteristic fracture pattern with the fracture running perpendicular to the longitudinal axis of the femur. The periosteal surface shows a focal cortical thickening (attempts to heal the fracture) and the fracture extends medially through unaffected cortical bone with a typical medial spike. These three radiographic signs are very typical findings for all kinds of stress fractures in cortical bone.

Each case including radiographs was evaluated by at least one senior consultant in orthopedics, and categorized into atypical femoral fractures (AFF) and normal fractures of the femoral shaft (NFF).

License

Controlled access

Free for use in legal and ethical medical diagnostics research. Please contact the dataset provider for terms of access.

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Subject: Requesting access to dataset doi:10.23698/aida/affai
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AIDA BY license

Copyright 2021 Linköping University, Jörg Schilcher, KTH, Chunliang Wang

Permission to use, copy, modify, and/or distribute this data within Analytic Imaging Diagnostics Arena (AIDA) for the purpose of medical diagnostics research with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies, and that publications resulting from the use of this data cite the following works:

Jörg Schilcher and Chunliang Wang (2021) X-ray examinations of atypical femoral fractures doi:10.23698/aida/affai.

Georg Zdolsek, Yupei Chen, Hans-Peter Bögl, Chunliang Wang, Mischa Woisetschläger & Jörg Schilcher (2021) Deep neural networks with promising diagnostic accuracy for the classification of atypical femoral fractures, Acta Orthopaedica, 92:4, 394-400, DOI: 10.1080/17453674.2021.1891512

THE DATA IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS DATA INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR CHARACTERISTICS OF THIS DATA.