Radiological criteria for atypical features of femur fractures: what we can learn when applied in a clinical study setting.
Erin S LeBlancA G RosalesH K GenantR M DellD M FriessD L BoardmanA C SantoraD C BauerA E de PappD M BlackE S OrwollPublished in: Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA (2019)
ASBMR AFF criteria were useful for reviewers but several features were difficult to interpret. Expert assessments did not agree with the ASBMR classification in almost one-third of cases, but rarely identified an AFF when a femoral shaft fracture did not meet ASBMR AFF criteria. Experts identified lateral cortical transverse fracture line and associated new-bone formation along with no or minimal comminution as crucial features necessary for the definition of atypical femoral fractures.